48 files changed, 242 insertions, 594 deletions
diff --git a/contrib/README.contrib b/contrib/README.contrib
index 335e43508be2..5e5f95054090 100644
--- a/contrib/README.contrib
+++ b/contrib/README.contrib
@@ -1,4 +1,4 @@
-All files under this contrib directory are UNSUPPORTED. There were
+All files under this contrib directory are UNSUPPORTED. They were
 provided by users of zlib and were not tested by the authors of zlib.
 Use at your own risk. Please contact the authors of the contributions
 for help about these, not the zlib authors. Thanks.
diff --git a/contrib/delphi/ZLib.pas b/contrib/delphi/ZLib.pas
index d40dad8a11dc..8be5fa22c4cd 100644
--- a/contrib/delphi/ZLib.pas
+++ b/contrib/delphi/ZLib.pas
@@ -152,7 +152,7 @@ procedure DecompressToUserBuf(const InBuf: Pointer; InBytes: Integer;
   const OutBuf: Pointer; BufSize: Integer);
 
 const
-  zlib_version = '1.2.12';
+  zlib_version = '1.2.13';
 
 type
   EZlibError = class(Exception);
diff --git a/contrib/dotzlib/DotZLib/UnitTests.cs b/contrib/dotzlib/DotZLib/UnitTests.cs
index 865c80200a59..16a0ebb072dd 100644
--- a/contrib/dotzlib/DotZLib/UnitTests.cs
+++ b/contrib/dotzlib/DotZLib/UnitTests.cs
@@ -156,7 +156,7 @@ namespace DotZLibTests
         public void Info_Version()
         {
             Info info = new Info();
-            Assert.AreEqual("1.2.12", Info.Version);
+            Assert.AreEqual("1.2.13", Info.Version);
             Assert.AreEqual(32, info.SizeOfUInt);
             Assert.AreEqual(32, info.SizeOfULong);
             Assert.AreEqual(32, info.SizeOfPointer);
diff --git a/contrib/infback9/inftree9.c b/contrib/infback9/inftree9.c
index 05506066ce0d..10827a6aa013 100644
--- a/contrib/infback9/inftree9.c
+++ b/contrib/infback9/inftree9.c
@@ -9,7 +9,7 @@
 #define MAXBITS 15
 
 const char inflate9_copyright[] =
-   " inflate9 1.2.12 Copyright 1995-2022 Mark Adler ";
+   " inflate9 1.2.13 Copyright 1995-2022 Mark Adler ";
 /*
   If you use the zlib library in a product, an acknowledgment is welcome
   in the documentation of your product. If for some reason you cannot
@@ -64,7 +64,7 @@ unsigned short FAR *work;
     static const unsigned short lext[31] = { /* Length codes 257..285 extra */
         128, 128, 128, 128, 128, 128, 128, 128, 129, 129, 129, 129,
         130, 130, 130, 130, 131, 131, 131, 131, 132, 132, 132, 132,
-        133, 133, 133, 133, 144, 199, 202};
+        133, 133, 133, 133, 144, 194, 65};
     static const unsigned short dbase[32] = { /* Distance codes 0..31 base */
         1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49,
         65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073,
diff --git a/contrib/infback9/inftree9.h b/contrib/infback9/inftree9.h
index 5ab21f0c6d11..3b394978e3fe 100644
--- a/contrib/infback9/inftree9.h
+++ b/contrib/infback9/inftree9.h
@@ -38,7 +38,7 @@ typedef struct {
 /* Maximum size of the dynamic table.  The maximum number of code structures is
    1446, which is the sum of 852 for literal/length codes and 594 for distance
    codes.  These values were found by exhaustive searches using the program
-   examples/enough.c found in the zlib distribtution.  The arguments to that
+   examples/enough.c found in the zlib distribution.  The arguments to that
    program are the number of symbols, the initial root table size, and the
    maximum bit length of a code.  "enough 286 9 15" for literal/length codes
    returns returns 852, and "enough 32 6 15" for distance codes returns 594.
diff --git a/contrib/minizip/configure.ac b/contrib/minizip/configure.ac
index 6409abc89337..bff300b3045f 100644
--- a/contrib/minizip/configure.ac
+++ b/contrib/minizip/configure.ac
@@ -1,7 +1,7 @@
 #                                               -*- Autoconf -*-
 # Process this file with autoconf to produce a configure script.
 
-AC_INIT([minizip], [1.2.12], [bugzilla.redhat.com])
+AC_INIT([minizip], [1.2.13], [bugzilla.redhat.com])
 AC_CONFIG_SRCDIR([minizip.c])
 AM_INIT_AUTOMAKE([foreign])
 LT_INIT
diff --git a/contrib/minizip/crypt.h b/contrib/minizip/crypt.h
index 9da15373d8b1..1cc41f19d78d 100644
--- a/contrib/minizip/crypt.h
+++ b/contrib/minizip/crypt.h
@@ -85,7 +85,7 @@ static void init_keys(const char* passwd,unsigned long* pkeys,const z_crc_t* pcr
 #define RAND_HEAD_LEN  12
    /* "last resort" source for second part of crypt seed pattern */
 #  ifndef ZCR_SEED2
-#    define ZCR_SEED2 3141592654L       /* use PI as default pattern */
+#    define ZCR_SEED2 3141592654UL      /* use PI as default pattern */
 #  endif
 
 static unsigned crypthead(const char* passwd,       /* password string */
diff --git a/contrib/minizip/ioapi.c b/contrib/minizip/ioapi.c
index d666e5a22894..814a6fd38c26 100644
--- a/contrib/minizip/ioapi.c
+++ b/contrib/minizip/ioapi.c
@@ -94,9 +94,9 @@ static int     ZCALLBACK ferror_file_func OF((voidpf opaque, voidpf stream));
 
 static voidpf ZCALLBACK fopen_file_func (voidpf opaque, const char* filename, int mode)
 {
-    (void)opaque;
     FILE* file = NULL;
     const char* mode_fopen = NULL;
+    (void)opaque;
     if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
         mode_fopen = "rb";
     else
@@ -113,9 +113,9 @@ static voidpf ZCALLBACK fopen_file_func (voidpf opaque, const char* filename, in
 
 static voidpf ZCALLBACK fopen64_file_func (voidpf opaque, const void* filename, int mode)
 {
-    (void)opaque;
     FILE* file = NULL;
     const char* mode_fopen = NULL;
+    (void)opaque;
     if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
         mode_fopen = "rb";
     else
@@ -133,24 +133,24 @@ static voidpf ZCALLBACK fopen64_file_func (voidpf opaque, const void* filename,
 
 static uLong ZCALLBACK fread_file_func (voidpf opaque, voidpf stream, void* buf, uLong size)
 {
-    (void)opaque;
     uLong ret;
+    (void)opaque;
     ret = (uLong)fread(buf, 1, (size_t)size, (FILE *)stream);
     return ret;
 }
 
 static uLong ZCALLBACK fwrite_file_func (voidpf opaque, voidpf stream, const void* buf, uLong size)
 {
-    (void)opaque;
     uLong ret;
+    (void)opaque;
     ret = (uLong)fwrite(buf, 1, (size_t)size, (FILE *)stream);
     return ret;
 }
 
 static long ZCALLBACK ftell_file_func (voidpf opaque, voidpf stream)
 {
-    (void)opaque;
     long ret;
+    (void)opaque;
     ret = ftell((FILE *)stream);
     return ret;
 }
@@ -158,17 +158,17 @@ static long ZCALLBACK ftell_file_func (voidpf opaque, voidpf stream)
 
 static ZPOS64_T ZCALLBACK ftell64_file_func (voidpf opaque, voidpf stream)
 {
-    (void)opaque;
     ZPOS64_T ret;
+    (void)opaque;
     ret = (ZPOS64_T)FTELLO_FUNC((FILE *)stream);
     return ret;
 }
 
 static long ZCALLBACK fseek_file_func (voidpf  opaque, voidpf stream, uLong offset, int origin)
 {
-    (void)opaque;
     int fseek_origin=0;
     long ret;
+    (void)opaque;
     switch (origin)
     {
     case ZLIB_FILEFUNC_SEEK_CUR :
@@ -190,9 +190,9 @@ static long ZCALLBACK fseek_file_func (voidpf  opaque, voidpf stream, uLong offs
 
 static long ZCALLBACK fseek64_file_func (voidpf  opaque, voidpf stream, ZPOS64_T offset, int origin)
 {
-    (void)opaque;
     int fseek_origin=0;
     long ret;
+    (void)opaque;
     switch (origin)
     {
     case ZLIB_FILEFUNC_SEEK_CUR :
@@ -208,7 +208,7 @@ static long ZCALLBACK fseek64_file_func (voidpf  opaque, voidpf stream, ZPOS64_T
     }
     ret = 0;
 
-    if(FSEEKO_FUNC((FILE *)stream, (long)offset, fseek_origin) != 0)
+    if(FSEEKO_FUNC((FILE *)stream, (z_off_t)offset, fseek_origin) != 0)
                         ret = -1;
 
     return ret;
@@ -217,16 +217,16 @@ static long ZCALLBACK fseek64_file_func (voidpf  opaque, voidpf stream, ZPOS64_T
 
 static int ZCALLBACK fclose_file_func (voidpf opaque, voidpf stream)
 {
-    (void)opaque;
     int ret;
+    (void)opaque;
     ret = fclose((FILE *)stream);
     return ret;
 }
 
 static int ZCALLBACK ferror_file_func (voidpf opaque, voidpf stream)
 {
-    (void)opaque;
     int ret;
+    (void)opaque;
     ret = ferror((FILE *)stream);
     return ret;
 }
diff --git a/contrib/minizip/ioapi.h b/contrib/minizip/ioapi.h
index 114bfab762fa..ae9ca7e8337d 100644
--- a/contrib/minizip/ioapi.h
+++ b/contrib/minizip/ioapi.h
@@ -50,7 +50,7 @@
 #define ftello64 ftell
 #define fseeko64 fseek
 #else
-#ifdef __FreeBSD__
+#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__)
 #define fopen64 fopen
 #define ftello64 ftello
 #define fseeko64 fseeko
diff --git a/contrib/minizip/iowin32.c b/contrib/minizip/iowin32.c
index 274f39eb1dd2..7df525172b2b 100644
--- a/contrib/minizip/iowin32.c
+++ b/contrib/minizip/iowin32.c
@@ -28,6 +28,11 @@
 
 // see Include/shared/winapifamily.h in the Windows Kit
 #if defined(WINAPI_FAMILY_PARTITION) && (!(defined(IOWIN32_USING_WINRT_API)))
+
+#if !defined(WINAPI_FAMILY_ONE_PARTITION)
+#define WINAPI_FAMILY_ONE_PARTITION(PartitionSet, Partition) ((WINAPI_FAMILY & PartitionSet) == Partition)
+#endif
+
 #if WINAPI_FAMILY_ONE_PARTITION(WINAPI_FAMILY, WINAPI_PARTITION_APP)
 #define IOWIN32_USING_WINRT_API 1
 #endif
diff --git a/contrib/minizip/miniunz.c b/contrib/minizip/miniunz.c
index f103815efb3e..0dc9b50815a8 100644
--- a/contrib/minizip/miniunz.c
+++ b/contrib/minizip/miniunz.c
@@ -564,7 +564,7 @@ int main(argc,argv)
 
                 while ((*p)!='\0')
                 {
-                    char c=*(p++);;
+                    char c=*(p++);
                     if ((c=='l') || (c=='L'))
                         opt_do_list = 1;
                     if ((c=='v') || (c=='V'))
diff --git a/contrib/minizip/minizip.c b/contrib/minizip/minizip.c
index 7f937aa5b2a4..e8561b15f91f 100644
--- a/contrib/minizip/minizip.c
+++ b/contrib/minizip/minizip.c
@@ -190,7 +190,7 @@ static int getFileCrc(const char* filenameinzip,void*buf,unsigned long size_buf,
    FILE * fin = FOPEN_FUNC(filenameinzip,"rb");
 
    unsigned long size_read = 0;
-   unsigned long total_read = 0;
+   /* unsigned long total_read = 0; */
    if (fin==NULL)
    {
        err = ZIP_ERRNO;
@@ -210,7 +210,7 @@ static int getFileCrc(const char* filenameinzip,void*buf,unsigned long size_buf,
 
             if (size_read>0)
                 calculate_crc = crc32_z(calculate_crc,buf,size_read);
-            total_read += size_read;
+            /* total_read += size_read; */
 
         } while ((err == ZIP_OK) && (size_read>0));
 
@@ -277,7 +277,7 @@ int main(argc,argv)
 
                 while ((*p)!='\0')
                 {
-                    char c=*(p++);;
+                    char c=*(p++);
                     if ((c=='o') || (c=='O'))
                         opt_overwrite = 1;
                     if ((c=='a') || (c=='A'))
diff --git a/contrib/minizip/unzip.c b/contrib/minizip/unzip.c
index 5e12e4747408..3036b470b72b 100644
--- a/contrib/minizip/unzip.c
+++ b/contrib/minizip/unzip.c
@@ -112,7 +112,7 @@
 # define ALLOC(size) (malloc(size))
 #endif
 #ifndef TRYFREE
-# define TRYFREE(p) {if (p) free(p);}
+# define TRYFREE(p) { free(p);}
 #endif
 
 #define SIZECENTRALDIRITEM (0x2e)
@@ -1566,6 +1566,7 @@ extern int ZEXPORT unzOpenCurrentFile3 (unzFile file, int* method,
         pfile_in_zip_read_info->stream_initialised=Z_BZIP2ED;
       else
       {
+        TRYFREE(pfile_in_zip_read_info->read_buffer);
         TRYFREE(pfile_in_zip_read_info);
         return err;
       }
@@ -1586,6 +1587,7 @@ extern int ZEXPORT unzOpenCurrentFile3 (unzFile file, int* method,
         pfile_in_zip_read_info->stream_initialised=Z_DEFLATED;
       else
       {
+        TRYFREE(pfile_in_zip_read_info->read_buffer);
         TRYFREE(pfile_in_zip_read_info);
         return err;
       }
diff --git a/contrib/minizip/zip.c b/contrib/minizip/zip.c
index 4e611e11630f..66d693f85a58 100644
--- a/contrib/minizip/zip.c
+++ b/contrib/minizip/zip.c
@@ -1471,11 +1471,6 @@ extern int ZEXPORT zipWriteInFileInZip (zipFile file,const void* buf,unsigned in
           {
               uLong uTotalOutBefore = zi->ci.stream.total_out;
               err=deflate(&zi->ci.stream,  Z_NO_FLUSH);
-              if(uTotalOutBefore > zi->ci.stream.total_out)
-              {
-                int bBreak = 0;
-                bBreak++;
-              }
 
               zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ;
           }
@@ -1959,7 +1954,7 @@ extern int ZEXPORT zipRemoveExtraInfoBlock (char* pData, int* dataLen, short sHe
 
   int retVal = ZIP_OK;
 
-  if(pData == NULL || *dataLen < 4)
+  if(pData == NULL || dataLen == NULL || *dataLen < 4)
     return ZIP_PARAMERROR;
 
   pNewHeader = (char*)ALLOC((unsigned)*dataLen);
diff --git a/contrib/pascal/zlibpas.pas b/contrib/pascal/zlibpas.pas
index adb5cd60b01b..bf3fff6ff6f5 100644
--- a/contrib/pascal/zlibpas.pas
+++ b/contrib/pascal/zlibpas.pas
@@ -10,7 +10,7 @@ unit zlibpas;
 interface
 
 const
-  ZLIB_VERSION = '1.2.12';
+  ZLIB_VERSION = '1.2.13';
   ZLIB_VERNUM  = $12a0;
 
 type
diff --git a/contrib/puff/README b/contrib/puff/README
index bbc4cb595ec1..d8192c78747e 100644
--- a/contrib/puff/README
+++ b/contrib/puff/README
@@ -38,7 +38,7 @@ Then you can call puff() to decompress a deflate stream that is in memory in
 its entirety at source, to a sufficiently sized block of memory for the
 decompressed data at dest.  puff() is the only external symbol in puff.c  The
 only C library functions that puff.c needs are setjmp() and longjmp(), which
-are used to simplify error checking in the code to improve readabilty.  puff.c
+are used to simplify error checking in the code to improve readability.  puff.c
 does no memory allocation, and uses less than 2K bytes off of the stack.
 
 If destlen is not enough space for the uncompressed data, then inflate will
diff --git a/contrib/puff/puff.c b/contrib/puff/puff.c
index c6c90d714206..6737ff6153f1 100644
--- a/contrib/puff/puff.c
+++ b/contrib/puff/puff.c
@@ -43,7 +43,7 @@
  *                      - Use pointers instead of long to specify source and
  *                        destination sizes to avoid arbitrary 4 GB limits
  * 1.2  17 Mar 2002     - Add faster version of decode(), doubles speed (!),
- *                        but leave simple version for readabilty
+ *                        but leave simple version for readability
  *                      - Make sure invalid distances detected if pointers
  *                        are 16 bits
  *                      - Fix fixed codes table error
@@ -624,7 +624,7 @@ local int fixed(struct state *s)
  *   are themselves compressed using Huffman codes and run-length encoding.  In
  *   the list of code lengths, a 0 symbol means no code, a 1..15 symbol means
  *   that length, and the symbols 16, 17, and 18 are run-length instructions.
- *   Each of 16, 17, and 18 are follwed by extra bits to define the length of
+ *   Each of 16, 17, and 18 are followed by extra bits to define the length of
  *   the run.  16 copies the last length 3 to 6 times.  17 represents 3 to 10
  *   zero lengths, and 18 represents 11 to 138 zero lengths.  Unused symbols
  *   are common, hence the special coding for zero lengths.
diff --git a/contrib/puff/pufftest.c b/contrib/puff/pufftest.c
index 776481488c90..5f72ecc82764 100644
--- a/contrib/puff/pufftest.c
+++ b/contrib/puff/pufftest.c
@@ -143,7 +143,7 @@ int main(int argc, char **argv)
                                      len - sourcelen);
     }
 
-    /* if requested, inflate again and write decompressd data to stdout */
+    /* if requested, inflate again and write decompressed data to stdout */
     if (put && ret == 0) {
         if (fail)
             destlen >>= 1;
diff --git a/contrib/vstudio/readme.txt b/contrib/vstudio/readme.txt
index d396d4309f31..17e693ffd541 100644
--- a/contrib/vstudio/readme.txt
+++ b/contrib/vstudio/readme.txt
@@ -1,4 +1,4 @@
-Building instructions for the DLL versions of Zlib 1.2.12
+Building instructions for the DLL versions of Zlib 1.2.13
 ========================================================
 
 This directory contains projects that build zlib and minizip using
@@ -17,9 +17,6 @@ More information can be found at this site.
 Build instructions for Visual Studio 2008 (32 bits or 64 bits)
 --------------------------------------------------------------
 - Decompress current zlib, including all contrib/* files
-- Compile assembly code (with Visual Studio Command Prompt) by running:
-   bld_ml64.bat (in contrib\masmx64)
-   bld_ml32.bat (in contrib\masmx86)
 - Open contrib\vstudio\vc9\zlibvc.sln with Microsoft Visual C++ 2008
 - Or run: vcbuild /rebuild contrib\vstudio\vc9\zlibvc.sln "Release|Win32"
 
diff --git a/contrib/vstudio/vc10/miniunz.vcxproj.filters b/contrib/vstudio/vc10/miniunz.vcxproj.filters
index 0b2a3de2dfe2..e53556a63866 100644
--- a/contrib/vstudio/vc10/miniunz.vcxproj.filters
+++ b/contrib/vstudio/vc10/miniunz.vcxproj.filters
@@ -3,7 +3,7 @@
   <ItemGroup>
     <Filter Include="Source Files">
       <UniqueIdentifier>{048af943-022b-4db6-beeb-a54c34774ee2}</UniqueIdentifier>
-      <Extensions>cpp;c;cxx;def;odl;idl;hpj;bat;asm</Extensions>
+      <Extensions>cpp;c;cxx;def;odl;idl;hpj;bat</Extensions>
     </Filter>
     <Filter Include="Header Files">
       <UniqueIdentifier>{c1d600d2-888f-4aea-b73e-8b0dd9befa0c}</UniqueIdentifier>
diff --git a/contrib/vstudio/vc10/minizip.vcxproj.filters b/contrib/vstudio/vc10/minizip.vcxproj.filters
index dd73cd313298..bd18d715e7cd 100644
--- a/contrib/vstudio/vc10/minizip.vcxproj.filters
+++ b/contrib/vstudio/vc10/minizip.vcxproj.filters
@@ -3,7 +3,7 @@
   <ItemGroup>
     <Filter Include="Source Files">
       <UniqueIdentifier>{c0419b40-bf50-40da-b153-ff74215b79de}</UniqueIdentifier>
-      <Extensions>cpp;c;cxx;def;odl;idl;hpj;bat;asm</Extensions>
+      <Extensions>cpp;c;cxx;def;odl;idl;hpj;bat</Extensions>
     </Filter>
     <Filter Include="Header Files">
       <UniqueIdentifier>{bb87b070-735b-478e-92ce-7383abb2f36c}</UniqueIdentifier>
diff --git a/contrib/vstudio/vc10/testzlib.vcxproj b/contrib/vstudio/vc10/testzlib.vcxproj
index 9088d176f8ce..0e668f7643bd 100644
--- a/contrib/vstudio/vc10/testzlib.vcxproj
+++ b/contrib/vstudio/vc10/testzlib.vcxproj
@@ -181,7 +181,7 @@
     <ClCompile>
       <Optimization>Disabled</Optimization>
       <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>ASMV;ASMINF;WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>true</MinimalRebuild>
       <BasicRuntimeChecks>Default</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
@@ -194,7 +194,7 @@
       <DebugInformationFormat>EditAndContinue</DebugInformationFormat>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>..\..\masmx86\match686.obj;..\..\masmx86\inffas32.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)testzlib.exe</OutputFile>
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <ProgramDatabaseFile>$(OutDir)testzlib.pdb</ProgramDatabaseFile>
@@ -241,7 +241,7 @@
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
       <OmitFramePointers>true</OmitFramePointers>
       <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>ASMV;ASMINF;WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <BasicRuntimeChecks>Default</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
@@ -254,7 +254,7 @@
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>..\..\masmx86\match686.obj;..\..\masmx86\inffas32.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)testzlib.exe</OutputFile>
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <SubSystem>Console</SubSystem>
@@ -269,14 +269,14 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <ClCompile>
       <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>ASMV;ASMINF;WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <BasicRuntimeChecks>Default</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
       <BufferSecurityCheck>false</BufferSecurityCheck>
       <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>..\..\masmx64\gvmat64.obj;..\..\masmx64\inffasx64.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">
@@ -352,14 +352,14 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <ClCompile>
       <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>ASMV;ASMINF;WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <BasicRuntimeChecks>Default</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
       <BufferSecurityCheck>false</BufferSecurityCheck>
       <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>..\..\masmx64\gvmat64.obj;..\..\masmx64\inffasx64.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">
@@ -398,14 +398,6 @@
     <ClCompile Include="..\..\..\crc32.c" />
     <ClCompile Include="..\..\..\deflate.c" />
     <ClCompile Include="..\..\..\infback.c" />
-    <ClCompile Include="..\..\masmx64\inffas8664.c">
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>
-    </ClCompile>
     <ClCompile Include="..\..\..\inffast.c" />
     <ClCompile Include="..\..\..\inflate.c" />
     <ClCompile Include="..\..\..\inftrees.c" />
diff --git a/contrib/vstudio/vc10/testzlib.vcxproj.filters b/contrib/vstudio/vc10/testzlib.vcxproj.filters
index 249daa89caf9..3cf52ee3edca 100644
--- a/contrib/vstudio/vc10/testzlib.vcxproj.filters
+++ b/contrib/vstudio/vc10/testzlib.vcxproj.filters
@@ -3,7 +3,7 @@
   <ItemGroup>
     <Filter Include="Source Files">
       <UniqueIdentifier>{c1f6a2e3-5da5-4955-8653-310d3efe05a9}</UniqueIdentifier>
-      <Extensions>cpp;c;cxx;def;odl;idl;hpj;bat;asm</Extensions>
+      <Extensions>cpp;c;cxx;def;odl;idl;hpj;bat</Extensions>
     </Filter>
     <Filter Include="Header Files">
       <UniqueIdentifier>{c2aaffdc-2c95-4d6f-8466-4bec5890af2c}</UniqueIdentifier>
@@ -30,9 +30,6 @@
     <ClCompile Include="..\..\..\infback.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\masmx64\inffas8664.c">
-      <Filter>Source Files</Filter>
-    </ClCompile>
     <ClCompile Include="..\..\..\inffast.c">
       <Filter>Source Files</Filter>
     </ClCompile>
diff --git a/contrib/vstudio/vc10/testzlibdll.vcxproj.filters b/contrib/vstudio/vc10/testzlibdll.vcxproj.filters
index 53a8693bb0a4..aeb550e9c338 100644
--- a/contrib/vstudio/vc10/testzlibdll.vcxproj.filters
+++ b/contrib/vstudio/vc10/testzlibdll.vcxproj.filters
@@ -3,7 +3,7 @@
   <ItemGroup>
     <Filter Include="Source Files">
       <UniqueIdentifier>{fa61a89f-93fc-4c89-b29e-36224b7592f4}</UniqueIdentifier>
-      <Extensions>cpp;c;cxx;def;odl;idl;hpj;bat;asm</Extensions>
+      <Extensions>cpp;c;cxx;def;odl;idl;hpj;bat</Extensions>
     </Filter>
     <Filter Include="Header Files">
       <UniqueIdentifier>{d4b85da0-2ba2-4934-b57f-e2584e3848ee}</UniqueIdentifier>
diff --git a/contrib/vstudio/vc10/zlib.rc b/contrib/vstudio/vc10/zlib.rc
index 8ad25f1031ad..876027498a33 100644
--- a/contrib/vstudio/vc10/zlib.rc
+++ b/contrib/vstudio/vc10/zlib.rc
@@ -2,8 +2,8 @@
 
 #define IDR_VERSION1  1
 IDR_VERSION1	VERSIONINFO	MOVEABLE IMPURE LOADONCALL DISCARDABLE
-  FILEVERSION	 1, 2, 12, 0
-  PRODUCTVERSION 1, 2, 12, 0
+  FILEVERSION	 1, 2, 13, 0
+  PRODUCTVERSION 1, 2, 13, 0
   FILEFLAGSMASK	VS_FFI_FILEFLAGSMASK
   FILEFLAGS	0
   FILEOS	VOS_DOS_WINDOWS32
@@ -17,7 +17,7 @@ BEGIN
 
     BEGIN
       VALUE "FileDescription", "zlib data compression and ZIP file I/O library\0"
-      VALUE "FileVersion",	"1.2.12\0"
+      VALUE "FileVersion",	"1.2.13\0"
       VALUE "InternalName",	"zlib\0"
       VALUE "OriginalFilename",	"zlibwapi.dll\0"
       VALUE "ProductName",	"ZLib.DLL\0"
diff --git a/contrib/vstudio/vc10/zlibstat.vcxproj b/contrib/vstudio/vc10/zlibstat.vcxproj
index b9f2bbe5f0b1..c7ed09e51956 100644
--- a/contrib/vstudio/vc10/zlibstat.vcxproj
+++ b/contrib/vstudio/vc10/zlibstat.vcxproj
@@ -160,7 +160,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -182,16 +182,12 @@
       <OutputFile>$(OutDir)zlibstat.lib</OutputFile>
       <SuppressStartupBanner>true</SuppressStartupBanner>
     </Lib>
-    <PreBuildEvent>
-      <Command>cd ..\..\masmx86
-bld_ml32.bat</Command>
-    </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ASMV;ASMINF;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -210,19 +206,15 @@ bld_ml32.bat</Command>
     </ResourceCompile>
     <Lib>
       <AdditionalOptions>/MACHINE:X86 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>
-      <AdditionalDependencies>..\..\masmx86\match686.obj;..\..\masmx86\inffas32.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)zlibstat.lib</OutputFile>
       <SuppressStartupBanner>true</SuppressStartupBanner>
     </Lib>
-    <PreBuildEvent>
-      <Command>cd ..\..\masmx86
-bld_ml32.bat</Command>
-    </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -252,7 +244,7 @@ bld_ml32.bat</Command>
     </Midl>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -274,10 +266,6 @@ bld_ml32.bat</Command>
       <OutputFile>$(OutDir)zlibstat.lib</OutputFile>
       <SuppressStartupBanner>true</SuppressStartupBanner>
     </Lib>
-    <PreBuildEvent>
-      <Command>cd ..\..\masmx64
-bld_ml64.bat</Command>
-    </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">
     <Midl>
@@ -285,7 +273,7 @@ bld_ml64.bat</Command>
     </Midl>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -314,8 +302,8 @@ bld_ml64.bat</Command>
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ASMV;ASMINF;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -334,14 +322,10 @@ bld_ml64.bat</Command>
     </ResourceCompile>
     <Lib>
       <AdditionalOptions>/MACHINE:AMD64 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>
-      <AdditionalDependencies>..\..\masmx64\gvmat64.obj;..\..\masmx64\inffasx64.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)zlibstat.lib</OutputFile>
       <SuppressStartupBanner>true</SuppressStartupBanner>
     </Lib>
-    <PreBuildEvent>
-      <Command>cd ..\..\masmx64
-bld_ml64.bat</Command>
-    </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">
     <Midl>
@@ -349,7 +333,7 @@ bld_ml64.bat</Command>
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -379,7 +363,7 @@ bld_ml64.bat</Command>
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -409,7 +393,7 @@ bld_ml64.bat</Command>
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -443,14 +427,6 @@ bld_ml64.bat</Command>
     <ClCompile Include="..\..\..\gzread.c" />
     <ClCompile Include="..\..\..\gzwrite.c" />
     <ClCompile Include="..\..\..\infback.c" />
-    <ClCompile Include="..\..\masmx64\inffas8664.c">
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>
-    </ClCompile>
     <ClCompile Include="..\..\..\inffast.c" />
     <ClCompile Include="..\..\..\inflate.c" />
     <ClCompile Include="..\..\..\inftrees.c" />
diff --git a/contrib/vstudio/vc10/zlibstat.vcxproj.filters b/contrib/vstudio/vc10/zlibstat.vcxproj.filters
index c8c7f7ea395c..ba7e23d3253c 100644
--- a/contrib/vstudio/vc10/zlibstat.vcxproj.filters
+++ b/contrib/vstudio/vc10/zlibstat.vcxproj.filters
@@ -33,9 +33,6 @@
     <ClCompile Include="..\..\..\infback.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\masmx64\inffas8664.c">
-      <Filter>Source Files</Filter>
-    </ClCompile>
     <ClCompile Include="..\..\..\inffast.c">
       <Filter>Source Files</Filter>
     </ClCompile>
diff --git a/contrib/vstudio/vc10/zlibvc.vcxproj b/contrib/vstudio/vc10/zlibvc.vcxproj
index 6ff9ddb0772a..19dfc35bf318 100644
--- a/contrib/vstudio/vc10/zlibvc.vcxproj
+++ b/contrib/vstudio/vc10/zlibvc.vcxproj
@@ -197,8 +197,8 @@
     </Midl>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>
       </ExceptionHandling>
       <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
@@ -219,7 +219,7 @@
     </ResourceCompile>
     <Link>
       <AdditionalOptions>/MACHINE:I386 %(AdditionalOptions)</AdditionalOptions>
-      <AdditionalDependencies>..\..\masmx86\match686.obj;..\..\masmx86\inffas32.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <ModuleDefinitionFile>.\zlibvc.def</ModuleDefinitionFile>
       <GenerateDebugInformation>true</GenerateDebugInformation>
@@ -229,10 +229,6 @@
       <DataExecutionPrevention>
       </DataExecutionPrevention>
     </Link>
-    <PreBuildEvent>
-      <Command>cd ..\..\masmx86
-bld_ml32.bat</Command>
-    </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">
     <Midl>
@@ -244,7 +240,7 @@ bld_ml32.bat</Command>
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -288,8 +284,8 @@ bld_ml32.bat</Command>
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -312,7 +308,7 @@ bld_ml32.bat</Command>
     </ResourceCompile>
     <Link>
       <AdditionalOptions>/MACHINE:I386 %(AdditionalOptions)</AdditionalOptions>
-      <AdditionalDependencies>..\..\masmx86\match686.obj;..\..\masmx86\inffas32.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <IgnoreAllDefaultLibraries>false</IgnoreAllDefaultLibraries>
       <ModuleDefinitionFile>.\zlibvc.def</ModuleDefinitionFile>
@@ -322,10 +318,6 @@ bld_ml32.bat</Command>
       <DataExecutionPrevention>
       </DataExecutionPrevention>
     </Link>
-    <PreBuildEvent>
-      <Command>cd ..\..\masmx86
-bld_ml32.bat</Command>
-    </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <Midl>
@@ -337,8 +329,8 @@ bld_ml32.bat</Command>
     </Midl>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>
       </ExceptionHandling>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
@@ -358,7 +350,7 @@ bld_ml32.bat</Command>
       <Culture>0x040c</Culture>
     </ResourceCompile>
     <Link>
-      <AdditionalDependencies>..\..\masmx64\gvmat64.obj;..\..\masmx64\inffasx64.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <ModuleDefinitionFile>.\zlibvc.def</ModuleDefinitionFile>
       <GenerateDebugInformation>true</GenerateDebugInformation>
@@ -366,10 +358,6 @@ bld_ml32.bat</Command>
       <SubSystem>Windows</SubSystem>
       <TargetMachine>MachineX64</TargetMachine>
     </Link>
-    <PreBuildEvent>
-      <Command>cd ..\..\masmx64
-bld_ml64.bat</Command>
-    </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">
     <Midl>
@@ -381,7 +369,7 @@ bld_ml64.bat</Command>
     </Midl>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -424,7 +412,7 @@ bld_ml64.bat</Command>
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -465,7 +453,7 @@ bld_ml64.bat</Command>
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -510,8 +498,8 @@ bld_ml64.bat</Command>
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -533,7 +521,7 @@ bld_ml64.bat</Command>
       <Culture>0x040c</Culture>
     </ResourceCompile>
     <Link>
-      <AdditionalDependencies>..\..\masmx64\gvmat64.obj;..\..\masmx64\inffasx64.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <IgnoreAllDefaultLibraries>false</IgnoreAllDefaultLibraries>
       <ModuleDefinitionFile>.\zlibvc.def</ModuleDefinitionFile>
@@ -541,10 +529,6 @@ bld_ml64.bat</Command>
       <SubSystem>Windows</SubSystem>
       <TargetMachine>MachineX64</TargetMachine>
     </Link>
-    <PreBuildEvent>
-      <Command>cd ..\..\masmx64
-bld_ml64.bat</Command>
-    </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">
     <Midl>
@@ -556,7 +540,7 @@ bld_ml64.bat</Command>
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -601,14 +585,6 @@ bld_ml64.bat</Command>
     <ClCompile Include="..\..\..\gzread.c" />
     <ClCompile Include="..\..\..\gzwrite.c" />
     <ClCompile Include="..\..\..\infback.c" />
-    <ClCompile Include="..\..\masmx64\inffas8664.c">
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>
-    </ClCompile>
     <ClCompile Include="..\..\..\inffast.c" />
     <ClCompile Include="..\..\..\inflate.c" />
     <ClCompile Include="..\..\..\inftrees.c" />
diff --git a/contrib/vstudio/vc10/zlibvc.vcxproj.filters b/contrib/vstudio/vc10/zlibvc.vcxproj.filters
index 180b71cd61df..67c444ab9ab1 100644
--- a/contrib/vstudio/vc10/zlibvc.vcxproj.filters
+++ b/contrib/vstudio/vc10/zlibvc.vcxproj.filters
@@ -42,9 +42,6 @@
     <ClCompile Include="..\..\..\infback.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\masmx64\inffas8664.c">
-      <Filter>Source Files</Filter>
-    </ClCompile>
     <ClCompile Include="..\..\..\inffast.c">
       <Filter>Source Files</Filter>
     </ClCompile>
diff --git a/contrib/vstudio/vc11/testzlib.vcxproj b/contrib/vstudio/vc11/testzlib.vcxproj
index 6d5595401306..c6198c1fd292 100644
--- a/contrib/vstudio/vc11/testzlib.vcxproj
+++ b/contrib/vstudio/vc11/testzlib.vcxproj
@@ -187,7 +187,7 @@
     <ClCompile>
       <Optimization>Disabled</Optimization>
       <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>ASMV;ASMINF;WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>true</MinimalRebuild>
       <BasicRuntimeChecks>Default</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
@@ -200,7 +200,7 @@
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>..\..\masmx86\match686.obj;..\..\masmx86\inffas32.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)testzlib.exe</OutputFile>
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <ProgramDatabaseFile>$(OutDir)testzlib.pdb</ProgramDatabaseFile>
@@ -247,7 +247,7 @@
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
       <OmitFramePointers>true</OmitFramePointers>
       <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>ASMV;ASMINF;WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <BasicRuntimeChecks>Default</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
@@ -260,7 +260,7 @@
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>..\..\masmx86\match686.obj;..\..\masmx86\inffas32.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)testzlib.exe</OutputFile>
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <SubSystem>Console</SubSystem>
@@ -275,14 +275,14 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <ClCompile>
       <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>ASMV;ASMINF;WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <BasicRuntimeChecks>Default</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
       <BufferSecurityCheck>false</BufferSecurityCheck>
       <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>..\..\masmx64\gvmat64.obj;..\..\masmx64\inffasx64.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">
@@ -358,14 +358,14 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <ClCompile>
       <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>ASMV;ASMINF;WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <BasicRuntimeChecks>Default</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
       <BufferSecurityCheck>false</BufferSecurityCheck>
       <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>..\..\masmx64\gvmat64.obj;..\..\masmx64\inffasx64.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">
@@ -404,14 +404,6 @@
     <ClCompile Include="..\..\..\crc32.c" />
     <ClCompile Include="..\..\..\deflate.c" />
     <ClCompile Include="..\..\..\infback.c" />
-    <ClCompile Include="..\..\masmx64\inffas8664.c">
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>
-    </ClCompile>
     <ClCompile Include="..\..\..\inffast.c" />
     <ClCompile Include="..\..\..\inflate.c" />
     <ClCompile Include="..\..\..\inftrees.c" />
diff --git a/contrib/vstudio/vc11/zlib.rc b/contrib/vstudio/vc11/zlib.rc
index 8ad25f1031ad..876027498a33 100644
--- a/contrib/vstudio/vc11/zlib.rc
+++ b/contrib/vstudio/vc11/zlib.rc
@@ -2,8 +2,8 @@
 
 #define IDR_VERSION1  1
 IDR_VERSION1	VERSIONINFO	MOVEABLE IMPURE LOADONCALL DISCARDABLE
-  FILEVERSION	 1, 2, 12, 0
-  PRODUCTVERSION 1, 2, 12, 0
+  FILEVERSION	 1, 2, 13, 0
+  PRODUCTVERSION 1, 2, 13, 0
   FILEFLAGSMASK	VS_FFI_FILEFLAGSMASK
   FILEFLAGS	0
   FILEOS	VOS_DOS_WINDOWS32
@@ -17,7 +17,7 @@ BEGIN
 
     BEGIN
       VALUE "FileDescription", "zlib data compression and ZIP file I/O library\0"
-      VALUE "FileVersion",	"1.2.12\0"
+      VALUE "FileVersion",	"1.2.13\0"
       VALUE "InternalName",	"zlib\0"
       VALUE "OriginalFilename",	"zlibwapi.dll\0"
       VALUE "ProductName",	"ZLib.DLL\0"
diff --git a/contrib/vstudio/vc11/zlibstat.vcxproj b/contrib/vstudio/vc11/zlibstat.vcxproj
index 806b76a88b63..86fb1c8bf605 100644
--- a/contrib/vstudio/vc11/zlibstat.vcxproj
+++ b/contrib/vstudio/vc11/zlibstat.vcxproj
@@ -167,7 +167,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -193,8 +193,8 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ASMV;ASMINF;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -213,7 +213,7 @@
     </ResourceCompile>
     <Lib>
       <AdditionalOptions>/MACHINE:X86 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>
-      <AdditionalDependencies>..\..\masmx86\match686.obj;..\..\masmx86\inffas32.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)zlibstat.lib</OutputFile>
       <SuppressStartupBanner>true</SuppressStartupBanner>
     </Lib>
@@ -221,7 +221,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -251,7 +251,7 @@
     </Midl>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -280,7 +280,7 @@
     </Midl>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -309,8 +309,8 @@
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ASMV;ASMINF;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -329,7 +329,7 @@
     </ResourceCompile>
     <Lib>
       <AdditionalOptions>/MACHINE:AMD64 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>
-      <AdditionalDependencies>..\..\masmx64\gvmat64.obj;..\..\masmx64\inffasx64.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)zlibstat.lib</OutputFile>
       <SuppressStartupBanner>true</SuppressStartupBanner>
     </Lib>
@@ -340,7 +340,7 @@
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -370,7 +370,7 @@
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -400,7 +400,7 @@
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -434,14 +434,6 @@
     <ClCompile Include="..\..\..\gzread.c" />
     <ClCompile Include="..\..\..\gzwrite.c" />
     <ClCompile Include="..\..\..\infback.c" />
-    <ClCompile Include="..\..\masmx64\inffas8664.c">
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>
-    </ClCompile>
     <ClCompile Include="..\..\..\inffast.c" />
     <ClCompile Include="..\..\..\inflate.c" />
     <ClCompile Include="..\..\..\inftrees.c" />
diff --git a/contrib/vstudio/vc11/zlibvc.vcxproj b/contrib/vstudio/vc11/zlibvc.vcxproj
index c65b95fdbb5c..fc8cd9c1765f 100644
--- a/contrib/vstudio/vc11/zlibvc.vcxproj
+++ b/contrib/vstudio/vc11/zlibvc.vcxproj
@@ -204,8 +204,8 @@
     </Midl>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>
       </ExceptionHandling>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
@@ -226,7 +226,7 @@
     </ResourceCompile>
     <Link>
       <AdditionalOptions>/MACHINE:I386 %(AdditionalOptions)</AdditionalOptions>
-      <AdditionalDependencies>..\..\masmx86\match686.obj;..\..\masmx86\inffas32.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <ModuleDefinitionFile>.\zlibvc.def</ModuleDefinitionFile>
@@ -240,10 +240,6 @@
       </DataExecutionPrevention>
       <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>
     </Link>
-    <PreBuildEvent>
-      <Command>cd ..\..\masmx86
-bld_ml32.bat</Command>
-    </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">
     <Midl>
@@ -255,7 +251,7 @@ bld_ml32.bat</Command>
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -303,8 +299,8 @@ bld_ml32.bat</Command>
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -327,7 +323,7 @@ bld_ml32.bat</Command>
     </ResourceCompile>
     <Link>
       <AdditionalOptions>/MACHINE:I386 %(AdditionalOptions)</AdditionalOptions>
-      <AdditionalDependencies>..\..\masmx86\match686.obj;..\..\masmx86\inffas32.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <IgnoreAllDefaultLibraries>false</IgnoreAllDefaultLibraries>
@@ -341,10 +337,6 @@ bld_ml32.bat</Command>
       </DataExecutionPrevention>
       <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>
     </Link>
-    <PreBuildEvent>
-      <Command>cd ..\..\masmx86
-bld_ml32.bat</Command>
-    </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <Midl>
@@ -356,8 +348,8 @@ bld_ml32.bat</Command>
     </Midl>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>
       </ExceptionHandling>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
@@ -377,7 +369,7 @@ bld_ml32.bat</Command>
       <Culture>0x040c</Culture>
     </ResourceCompile>
     <Link>
-      <AdditionalDependencies>..\..\masmx64\gvmat64.obj;..\..\masmx64\inffasx64.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <ModuleDefinitionFile>.\zlibvc.def</ModuleDefinitionFile>
@@ -389,10 +381,6 @@ bld_ml32.bat</Command>
       <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>
       <TargetMachine>MachineX64</TargetMachine>
     </Link>
-    <PreBuildEvent>
-      <Command>cd ..\..\contrib\masmx64
-bld_ml64.bat</Command>
-    </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">
     <Midl>
@@ -404,7 +392,7 @@ bld_ml64.bat</Command>
     </Midl>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -447,7 +435,7 @@ bld_ml64.bat</Command>
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -492,7 +480,7 @@ bld_ml64.bat</Command>
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -537,8 +525,8 @@ bld_ml64.bat</Command>
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -560,7 +548,7 @@ bld_ml64.bat</Command>
       <Culture>0x040c</Culture>
     </ResourceCompile>
     <Link>
-      <AdditionalDependencies>..\..\masmx64\gvmat64.obj;..\..\masmx64\inffasx64.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <IgnoreAllDefaultLibraries>false</IgnoreAllDefaultLibraries>
@@ -572,10 +560,6 @@ bld_ml64.bat</Command>
       <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>
       <TargetMachine>MachineX64</TargetMachine>
     </Link>
-    <PreBuildEvent>
-      <Command>cd ..\..\masmx64
-bld_ml64.bat</Command>
-    </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">
     <Midl>
@@ -587,7 +571,7 @@ bld_ml64.bat</Command>
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -632,14 +616,6 @@ bld_ml64.bat</Command>
     <ClCompile Include="..\..\..\gzread.c" />
     <ClCompile Include="..\..\..\gzwrite.c" />
     <ClCompile Include="..\..\..\infback.c" />
-    <ClCompile Include="..\..\masmx64\inffas8664.c">
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>
-    </ClCompile>
     <ClCompile Include="..\..\..\inffast.c" />
     <ClCompile Include="..\..\..\inflate.c" />
     <ClCompile Include="..\..\..\inftrees.c" />
diff --git a/contrib/vstudio/vc12/testzlib.vcxproj b/contrib/vstudio/vc12/testzlib.vcxproj
index 64b2cbe34a23..41303c0af488 100644
--- a/contrib/vstudio/vc12/testzlib.vcxproj
+++ b/contrib/vstudio/vc12/testzlib.vcxproj
@@ -190,7 +190,7 @@
     <ClCompile>
       <Optimization>Disabled</Optimization>
       <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>ASMV;ASMINF;WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>true</MinimalRebuild>
       <BasicRuntimeChecks>Default</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
@@ -203,7 +203,7 @@
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>..\..\masmx86\match686.obj;..\..\masmx86\inffas32.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)testzlib.exe</OutputFile>
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <ProgramDatabaseFile>$(OutDir)testzlib.pdb</ProgramDatabaseFile>
@@ -250,7 +250,7 @@
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
       <OmitFramePointers>true</OmitFramePointers>
       <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>ASMV;ASMINF;WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <BasicRuntimeChecks>Default</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
@@ -263,7 +263,7 @@
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>..\..\masmx86\match686.obj;..\..\masmx86\inffas32.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)testzlib.exe</OutputFile>
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <SubSystem>Console</SubSystem>
@@ -279,14 +279,14 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <ClCompile>
       <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>ASMV;ASMINF;WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <BasicRuntimeChecks>Default</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
       <BufferSecurityCheck>false</BufferSecurityCheck>
       <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>..\..\masmx64\gvmat64.obj;..\..\masmx64\inffasx64.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">
@@ -362,14 +362,14 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <ClCompile>
       <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>ASMV;ASMINF;WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <BasicRuntimeChecks>Default</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
       <BufferSecurityCheck>false</BufferSecurityCheck>
       <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>..\..\masmx64\gvmat64.obj;..\..\masmx64\inffasx64.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">
@@ -408,14 +408,6 @@
     <ClCompile Include="..\..\..\crc32.c" />
     <ClCompile Include="..\..\..\deflate.c" />
     <ClCompile Include="..\..\..\infback.c" />
-    <ClCompile Include="..\..\masmx64\inffas8664.c">
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>
-    </ClCompile>
     <ClCompile Include="..\..\..\inffast.c" />
     <ClCompile Include="..\..\..\inflate.c" />
     <ClCompile Include="..\..\..\inftrees.c" />
diff --git a/contrib/vstudio/vc12/zlib.rc b/contrib/vstudio/vc12/zlib.rc
index 947587350690..cdd7985d41ef 100644
--- a/contrib/vstudio/vc12/zlib.rc
+++ b/contrib/vstudio/vc12/zlib.rc
@@ -2,8 +2,8 @@
 
 #define IDR_VERSION1  1
 IDR_VERSION1	VERSIONINFO	MOVEABLE IMPURE LOADONCALL DISCARDABLE
-  FILEVERSION	 1, 2, 12, 0
-  PRODUCTVERSION 1, 2, 12, 0
+  FILEVERSION	 1, 2, 13, 0
+  PRODUCTVERSION 1, 2, 13, 0
   FILEFLAGSMASK	VS_FFI_FILEFLAGSMASK
   FILEFLAGS	0
   FILEOS	VOS_DOS_WINDOWS32
@@ -17,7 +17,7 @@ BEGIN
 
     BEGIN
       VALUE "FileDescription", "zlib data compression and ZIP file I/O library\0"
-      VALUE "FileVersion",	"1.2.12\0"
+      VALUE "FileVersion",	"1.2.13\0"
       VALUE "InternalName",	"zlib\0"
       VALUE "OriginalFilename",	"zlibwapi.dll\0"
       VALUE "ProductName",	"ZLib.DLL\0"
diff --git a/contrib/vstudio/vc12/zlibstat.vcxproj b/contrib/vstudio/vc12/zlibstat.vcxproj
index 3fdee7c50782..6629d8e2a3a9 100644
--- a/contrib/vstudio/vc12/zlibstat.vcxproj
+++ b/contrib/vstudio/vc12/zlibstat.vcxproj
@@ -170,7 +170,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -196,8 +196,8 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ASMV;ASMINF;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -216,7 +216,7 @@
     </ResourceCompile>
     <Lib>
       <AdditionalOptions>/MACHINE:X86 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>
-      <AdditionalDependencies>..\..\masmx86\match686.obj;..\..\masmx86\inffas32.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)zlibstat.lib</OutputFile>
       <SuppressStartupBanner>true</SuppressStartupBanner>
     </Lib>
@@ -224,7 +224,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -254,7 +254,7 @@
     </Midl>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -283,7 +283,7 @@
     </Midl>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -312,8 +312,8 @@
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ASMV;ASMINF;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -332,7 +332,7 @@
     </ResourceCompile>
     <Lib>
       <AdditionalOptions>/MACHINE:AMD64 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>
-      <AdditionalDependencies>..\..\masmx64\gvmat64.obj;..\..\masmx64\inffasx64.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)zlibstat.lib</OutputFile>
       <SuppressStartupBanner>true</SuppressStartupBanner>
     </Lib>
@@ -343,7 +343,7 @@
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -373,7 +373,7 @@
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -403,7 +403,7 @@
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -437,14 +437,6 @@
     <ClCompile Include="..\..\..\gzread.c" />
     <ClCompile Include="..\..\..\gzwrite.c" />
     <ClCompile Include="..\..\..\infback.c" />
-    <ClCompile Include="..\..\masmx64\inffas8664.c">
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>
-    </ClCompile>
     <ClCompile Include="..\..\..\inffast.c" />
     <ClCompile Include="..\..\..\inflate.c" />
     <ClCompile Include="..\..\..\inftrees.c" />
diff --git a/contrib/vstudio/vc12/zlibvc.vcxproj b/contrib/vstudio/vc12/zlibvc.vcxproj
index ab2b6c360355..4e0de691ef31 100644
--- a/contrib/vstudio/vc12/zlibvc.vcxproj
+++ b/contrib/vstudio/vc12/zlibvc.vcxproj
@@ -207,8 +207,8 @@
     </Midl>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>
       </ExceptionHandling>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
@@ -229,7 +229,7 @@
     </ResourceCompile>
     <Link>
       <AdditionalOptions>/MACHINE:I386 %(AdditionalOptions)</AdditionalOptions>
-      <AdditionalDependencies>..\..\masmx86\match686.obj;..\..\masmx86\inffas32.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <ModuleDefinitionFile>.\zlibvc.def</ModuleDefinitionFile>
@@ -243,10 +243,6 @@
       </DataExecutionPrevention>
       <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>
     </Link>
-    <PreBuildEvent>
-      <Command>cd ..\..\masmx86
-bld_ml32.bat</Command>
-    </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">
     <Midl>
@@ -258,7 +254,7 @@ bld_ml32.bat</Command>
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -306,8 +302,8 @@ bld_ml32.bat</Command>
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -330,7 +326,7 @@ bld_ml32.bat</Command>
     </ResourceCompile>
     <Link>
       <AdditionalOptions>/MACHINE:I386 %(AdditionalOptions)</AdditionalOptions>
-      <AdditionalDependencies>..\..\masmx86\match686.obj;..\..\masmx86\inffas32.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <IgnoreAllDefaultLibraries>false</IgnoreAllDefaultLibraries>
@@ -345,10 +341,6 @@ bld_ml32.bat</Command>
       <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>
       <ImageHasSafeExceptionHandlers>false</ImageHasSafeExceptionHandlers>
     </Link>
-    <PreBuildEvent>
-      <Command>cd ..\..\masmx86
-bld_ml32.bat</Command>
-    </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <Midl>
@@ -360,8 +352,8 @@ bld_ml32.bat</Command>
     </Midl>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>
       </ExceptionHandling>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
@@ -381,7 +373,7 @@ bld_ml32.bat</Command>
       <Culture>0x040c</Culture>
     </ResourceCompile>
     <Link>
-      <AdditionalDependencies>..\..\masmx64\gvmat64.obj;..\..\masmx64\inffasx64.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <ModuleDefinitionFile>.\zlibvc.def</ModuleDefinitionFile>
@@ -393,10 +385,6 @@ bld_ml32.bat</Command>
       <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>
       <TargetMachine>MachineX64</TargetMachine>
     </Link>
-    <PreBuildEvent>
-      <Command>cd ..\..\contrib\masmx64
-bld_ml64.bat</Command>
-    </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">
     <Midl>
@@ -408,7 +396,7 @@ bld_ml64.bat</Command>
     </Midl>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -451,7 +439,7 @@ bld_ml64.bat</Command>
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -496,7 +484,7 @@ bld_ml64.bat</Command>
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -541,8 +529,8 @@ bld_ml64.bat</Command>
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -564,7 +552,7 @@ bld_ml64.bat</Command>
       <Culture>0x040c</Culture>
     </ResourceCompile>
     <Link>
-      <AdditionalDependencies>..\..\masmx64\gvmat64.obj;..\..\masmx64\inffasx64.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <IgnoreAllDefaultLibraries>false</IgnoreAllDefaultLibraries>
@@ -576,10 +564,6 @@ bld_ml64.bat</Command>
       <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>
       <TargetMachine>MachineX64</TargetMachine>
     </Link>
-    <PreBuildEvent>
-      <Command>cd ..\..\masmx64
-bld_ml64.bat</Command>
-    </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">
     <Midl>
@@ -591,7 +575,7 @@ bld_ml64.bat</Command>
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -636,14 +620,6 @@ bld_ml64.bat</Command>
     <ClCompile Include="..\..\..\gzread.c" />
     <ClCompile Include="..\..\..\gzwrite.c" />
     <ClCompile Include="..\..\..\infback.c" />
-    <ClCompile Include="..\..\masmx64\inffas8664.c">
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>
-    </ClCompile>
     <ClCompile Include="..\..\..\inffast.c" />
     <ClCompile Include="..\..\..\inflate.c" />
     <ClCompile Include="..\..\..\inftrees.c" />
diff --git a/contrib/vstudio/vc14/testzlib.vcxproj b/contrib/vstudio/vc14/testzlib.vcxproj
index 2c371252aeb7..545204954dd4 100644
--- a/contrib/vstudio/vc14/testzlib.vcxproj
+++ b/contrib/vstudio/vc14/testzlib.vcxproj
@@ -190,7 +190,7 @@
     <ClCompile>
       <Optimization>Disabled</Optimization>
       <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>ASMV;ASMINF;WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>true</MinimalRebuild>
       <BasicRuntimeChecks>Default</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
@@ -203,7 +203,7 @@
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>..\..\masmx86\match686.obj;..\..\masmx86\inffas32.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)testzlib.exe</OutputFile>
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <ProgramDatabaseFile>$(OutDir)testzlib.pdb</ProgramDatabaseFile>
@@ -250,7 +250,7 @@
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
       <OmitFramePointers>true</OmitFramePointers>
       <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>ASMV;ASMINF;WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <BasicRuntimeChecks>Default</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
@@ -263,7 +263,7 @@
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>..\..\masmx86\match686.obj;..\..\masmx86\inffas32.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)testzlib.exe</OutputFile>
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <SubSystem>Console</SubSystem>
@@ -279,14 +279,14 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <ClCompile>
       <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>ASMV;ASMINF;WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <BasicRuntimeChecks>Default</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
       <BufferSecurityCheck>false</BufferSecurityCheck>
       <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>..\..\masmx64\gvmat64.obj;..\..\masmx64\inffasx64.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">
@@ -362,14 +362,14 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <ClCompile>
       <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>ASMV;ASMINF;WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <BasicRuntimeChecks>Default</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
       <BufferSecurityCheck>false</BufferSecurityCheck>
       <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>..\..\masmx64\gvmat64.obj;..\..\masmx64\inffasx64.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">
@@ -408,14 +408,6 @@
     <ClCompile Include="..\..\..\crc32.c" />
     <ClCompile Include="..\..\..\deflate.c" />
     <ClCompile Include="..\..\..\infback.c" />
-    <ClCompile Include="..\..\masmx64\inffas8664.c">
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>
-    </ClCompile>
     <ClCompile Include="..\..\..\inffast.c" />
     <ClCompile Include="..\..\..\inflate.c" />
     <ClCompile Include="..\..\..\inftrees.c" />
diff --git a/contrib/vstudio/vc14/zlib.rc b/contrib/vstudio/vc14/zlib.rc
index 947587350690..cdd7985d41ef 100644
--- a/contrib/vstudio/vc14/zlib.rc
+++ b/contrib/vstudio/vc14/zlib.rc
@@ -2,8 +2,8 @@
 
 #define IDR_VERSION1  1
 IDR_VERSION1	VERSIONINFO	MOVEABLE IMPURE LOADONCALL DISCARDABLE
-  FILEVERSION	 1, 2, 12, 0
-  PRODUCTVERSION 1, 2, 12, 0
+  FILEVERSION	 1, 2, 13, 0
+  PRODUCTVERSION 1, 2, 13, 0
   FILEFLAGSMASK	VS_FFI_FILEFLAGSMASK
   FILEFLAGS	0
   FILEOS	VOS_DOS_WINDOWS32
@@ -17,7 +17,7 @@ BEGIN
 
     BEGIN
       VALUE "FileDescription", "zlib data compression and ZIP file I/O library\0"
-      VALUE "FileVersion",	"1.2.12\0"
+      VALUE "FileVersion",	"1.2.13\0"
       VALUE "InternalName",	"zlib\0"
       VALUE "OriginalFilename",	"zlibwapi.dll\0"
       VALUE "ProductName",	"ZLib.DLL\0"
diff --git a/contrib/vstudio/vc14/zlibstat.vcxproj b/contrib/vstudio/vc14/zlibstat.vcxproj
index 3e4b986392ec..85c1e8958e67 100644
--- a/contrib/vstudio/vc14/zlibstat.vcxproj
+++ b/contrib/vstudio/vc14/zlibstat.vcxproj
@@ -170,7 +170,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -196,8 +196,8 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ASMV;ASMINF;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -216,7 +216,7 @@
     </ResourceCompile>
     <Lib>
       <AdditionalOptions>/MACHINE:X86 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>
-      <AdditionalDependencies>..\..\masmx86\match686.obj;..\..\masmx86\inffas32.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)zlibstat.lib</OutputFile>
       <SuppressStartupBanner>true</SuppressStartupBanner>
     </Lib>
@@ -224,7 +224,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -254,7 +254,7 @@
     </Midl>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -283,7 +283,7 @@
     </Midl>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -312,8 +312,8 @@
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ASMV;ASMINF;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -332,7 +332,7 @@
     </ResourceCompile>
     <Lib>
       <AdditionalOptions>/MACHINE:AMD64 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>
-      <AdditionalDependencies>..\..\masmx64\gvmat64.obj;..\..\masmx64\inffasx64.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)zlibstat.lib</OutputFile>
       <SuppressStartupBanner>true</SuppressStartupBanner>
     </Lib>
@@ -343,7 +343,7 @@
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -373,7 +373,7 @@
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -403,7 +403,7 @@
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -437,14 +437,6 @@
     <ClCompile Include="..\..\..\gzread.c" />
     <ClCompile Include="..\..\..\gzwrite.c" />
     <ClCompile Include="..\..\..\infback.c" />
-    <ClCompile Include="..\..\masmx64\inffas8664.c">
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>
-    </ClCompile>
     <ClCompile Include="..\..\..\inffast.c" />
     <ClCompile Include="..\..\..\inflate.c" />
     <ClCompile Include="..\..\..\inftrees.c" />
diff --git a/contrib/vstudio/vc14/zlibvc.vcxproj b/contrib/vstudio/vc14/zlibvc.vcxproj
index f8f673cb0569..424ff55b7eda 100644
--- a/contrib/vstudio/vc14/zlibvc.vcxproj
+++ b/contrib/vstudio/vc14/zlibvc.vcxproj
@@ -207,8 +207,8 @@
     </Midl>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>
       </ExceptionHandling>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
@@ -229,7 +229,7 @@
     </ResourceCompile>
     <Link>
       <AdditionalOptions>/MACHINE:I386 %(AdditionalOptions)</AdditionalOptions>
-      <AdditionalDependencies>..\..\masmx86\match686.obj;..\..\masmx86\inffas32.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <ModuleDefinitionFile>.\zlibvc.def</ModuleDefinitionFile>
@@ -243,10 +243,6 @@
       </DataExecutionPrevention>
       <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>
     </Link>
-    <PreBuildEvent>
-      <Command>cd ..\..\masmx86
-bld_ml32.bat</Command>
-    </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">
     <Midl>
@@ -258,7 +254,7 @@ bld_ml32.bat</Command>
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -306,8 +302,8 @@ bld_ml32.bat</Command>
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -330,7 +326,7 @@ bld_ml32.bat</Command>
     </ResourceCompile>
     <Link>
       <AdditionalOptions>/MACHINE:I386 %(AdditionalOptions)</AdditionalOptions>
-      <AdditionalDependencies>..\..\masmx86\match686.obj;..\..\masmx86\inffas32.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <IgnoreAllDefaultLibraries>false</IgnoreAllDefaultLibraries>
@@ -345,10 +341,6 @@ bld_ml32.bat</Command>
       <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>
       <ImageHasSafeExceptionHandlers>false</ImageHasSafeExceptionHandlers>
     </Link>
-    <PreBuildEvent>
-      <Command>cd ..\..\masmx86
-bld_ml32.bat</Command>
-    </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <Midl>
@@ -360,8 +352,8 @@ bld_ml32.bat</Command>
     </Midl>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>
       </ExceptionHandling>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
@@ -381,7 +373,7 @@ bld_ml32.bat</Command>
       <Culture>0x040c</Culture>
     </ResourceCompile>
     <Link>
-      <AdditionalDependencies>..\..\masmx64\gvmat64.obj;..\..\masmx64\inffasx64.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <ModuleDefinitionFile>.\zlibvc.def</ModuleDefinitionFile>
@@ -393,10 +385,6 @@ bld_ml32.bat</Command>
       <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>
       <TargetMachine>MachineX64</TargetMachine>
     </Link>
-    <PreBuildEvent>
-      <Command>cd ..\..\contrib\masmx64
-bld_ml64.bat</Command>
-    </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">
     <Midl>
@@ -408,7 +396,7 @@ bld_ml64.bat</Command>
     </Midl>
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -451,7 +439,7 @@ bld_ml64.bat</Command>
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -496,7 +484,7 @@ bld_ml64.bat</Command>
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -541,8 +529,8 @@ bld_ml64.bat</Command>
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
       </ExceptionHandling>
@@ -564,7 +552,7 @@ bld_ml64.bat</Command>
       <Culture>0x040c</Culture>
     </ResourceCompile>
     <Link>
-      <AdditionalDependencies>..\..\masmx64\gvmat64.obj;..\..\masmx64\inffasx64.obj;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)zlibwapi.dll</OutputFile>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <IgnoreAllDefaultLibraries>false</IgnoreAllDefaultLibraries>
@@ -576,10 +564,6 @@ bld_ml64.bat</Command>
       <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>
       <TargetMachine>MachineX64</TargetMachine>
     </Link>
-    <PreBuildEvent>
-      <Command>cd ..\..\masmx64
-bld_ml64.bat</Command>
-    </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">
     <Midl>
@@ -591,7 +575,7 @@ bld_ml64.bat</Command>
     </Midl>
     <ClCompile>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <ExceptionHandling>
@@ -636,14 +620,6 @@ bld_ml64.bat</Command>
     <ClCompile Include="..\..\..\gzread.c" />
     <ClCompile Include="..\..\..\gzwrite.c" />
     <ClCompile Include="..\..\..\infback.c" />
-    <ClCompile Include="..\..\masmx64\inffas8664.c">
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">true</ExcludedFromBuild>
-      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>
-    </ClCompile>
     <ClCompile Include="..\..\..\inffast.c" />
     <ClCompile Include="..\..\..\inflate.c" />
     <ClCompile Include="..\..\..\inftrees.c" />
diff --git a/contrib/vstudio/vc9/miniunz.vcproj b/contrib/vstudio/vc9/miniunz.vcproj
index 7da32b91eafb..cc3d13a10c05 100644
--- a/contrib/vstudio/vc9/miniunz.vcproj
+++ b/contrib/vstudio/vc9/miniunz.vcproj
@@ -542,7 +542,7 @@
 	<Files>
 		<Filter
 			Name="Source Files"
-			Filter="cpp;c;cxx;def;odl;idl;hpj;bat;asm"
+			Filter="cpp;c;cxx;def;odl;idl;hpj;bat"
 			>
 			<File
 				RelativePath="..\..\minizip\miniunz.c"
diff --git a/contrib/vstudio/vc9/minizip.vcproj b/contrib/vstudio/vc9/minizip.vcproj
index e57e07d90c3d..fecd9dd07d5e 100644
--- a/contrib/vstudio/vc9/minizip.vcproj
+++ b/contrib/vstudio/vc9/minizip.vcproj
@@ -539,7 +539,7 @@
 	<Files>
 		<Filter
 			Name="Source Files"
-			Filter="cpp;c;cxx;def;odl;idl;hpj;bat;asm"
+			Filter="cpp;c;cxx;def;odl;idl;hpj;bat"
 			>
 			<File
 				RelativePath="..\..\minizip\minizip.c"
diff --git a/contrib/vstudio/vc9/testzlib.vcproj b/contrib/vstudio/vc9/testzlib.vcproj
index 9cb0bf877f3d..ff69640e3fce 100644
--- a/contrib/vstudio/vc9/testzlib.vcproj
+++ b/contrib/vstudio/vc9/testzlib.vcproj
@@ -48,7 +48,7 @@
 				Name="VCCLCompilerTool"
 				Optimization="0"
 				AdditionalIncludeDirectories="..\..\.."
-				PreprocessorDefinitions="ASMV;ASMINF;WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"
+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="0"
 				RuntimeLibrary="1"
@@ -71,7 +71,6 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="..\..\masmx86\match686.obj ..\..\masmx86\inffas32.obj"
 				OutputFile="$(OutDir)/testzlib.exe"
 				LinkIncremental="2"
 				GenerateManifest="false"
@@ -128,7 +127,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				AdditionalIncludeDirectories="..\..\.."
-				PreprocessorDefinitions="ASMV;ASMINF;WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"
+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"
 				BasicRuntimeChecks="0"
 				RuntimeLibrary="3"
 				BufferSecurityCheck="false"
@@ -145,7 +144,6 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="..\..\masmx64\gvmat64.obj ..\..\masmx64\inffasx64.obj"
 				GenerateManifest="false"
 			/>
 			<Tool
@@ -517,7 +515,7 @@
 				InlineFunctionExpansion="1"
 				OmitFramePointers="true"
 				AdditionalIncludeDirectories="..\..\.."
-				PreprocessorDefinitions="ASMV;ASMINF;WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"
+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"
 				StringPooling="true"
 				BasicRuntimeChecks="0"
 				RuntimeLibrary="0"
@@ -540,7 +538,6 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="..\..\masmx86\match686.obj ..\..\masmx86\inffas32.obj"
 				OutputFile="$(OutDir)/testzlib.exe"
 				LinkIncremental="1"
 				GenerateManifest="false"
@@ -600,7 +597,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				AdditionalIncludeDirectories="..\..\.."
-				PreprocessorDefinitions="ASMV;ASMINF;WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"
+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"
 				BasicRuntimeChecks="0"
 				RuntimeLibrary="0"
 				BufferSecurityCheck="false"
@@ -617,7 +614,6 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="..\..\masmx64\gvmat64.obj ..\..\masmx64\inffasx64.obj"
 				GenerateManifest="false"
 			/>
 			<Tool
@@ -733,7 +729,7 @@
 	<Files>
 		<Filter
 			Name="Source Files"
-			Filter="cpp;c;cxx;def;odl;idl;hpj;bat;asm"
+			Filter="cpp;c;cxx;def;odl;idl;hpj;bat"
 			>
 			<File
 				RelativePath="..\..\..\adler32.c"
@@ -756,58 +752,6 @@
 				>
 			</File>
 			<File
-				RelativePath="..\..\masmx64\inffas8664.c"
-				>
-				<FileConfiguration
-					Name="Debug|Win32"
-					ExcludedFromBuild="true"
-					>
-					<Tool
-						Name="VCCLCompilerTool"
-					/>
-				</FileConfiguration>
-				<FileConfiguration
-					Name="Debug|Itanium"
-					ExcludedFromBuild="true"
-					>
-					<Tool
-						Name="VCCLCompilerTool"
-					/>
-				</FileConfiguration>
-				<FileConfiguration
-					Name="ReleaseWithoutAsm|Win32"
-					ExcludedFromBuild="true"
-					>
-					<Tool
-						Name="VCCLCompilerTool"
-					/>
-				</FileConfiguration>
-				<FileConfiguration
-					Name="ReleaseWithoutAsm|Itanium"
-					ExcludedFromBuild="true"
-					>
-					<Tool
-						Name="VCCLCompilerTool"
-					/>
-				</FileConfiguration>
-				<FileConfiguration
-					Name="Release|Win32"
-					ExcludedFromBuild="true"
-					>
-					<Tool
-						Name="VCCLCompilerTool"
-					/>
-				</FileConfiguration>
-				<FileConfiguration
-					Name="Release|Itanium"
-					ExcludedFromBuild="true"
-					>
-					<Tool
-						Name="VCCLCompilerTool"
-					/>
-				</FileConfiguration>
-			</File>
-			<File
 				RelativePath="..\..\..\inffast.c"
 				>
 			</File>
diff --git a/contrib/vstudio/vc9/testzlibdll.vcproj b/contrib/vstudio/vc9/testzlibdll.vcproj
index b1ddde05f984..6448b497cd56 100644
--- a/contrib/vstudio/vc9/testzlibdll.vcproj
+++ b/contrib/vstudio/vc9/testzlibdll.vcproj
@@ -542,7 +542,7 @@
 	<Files>
 		<Filter
 			Name="Source Files"
-			Filter="cpp;c;cxx;def;odl;idl;hpj;bat;asm"
+			Filter="cpp;c;cxx;def;odl;idl;hpj;bat"
 			>
 			<File
 				RelativePath="..\..\testzlib\testzlib.c"
diff --git a/contrib/vstudio/vc9/zlib.rc b/contrib/vstudio/vc9/zlib.rc
index 8ad25f1031ad..876027498a33 100644
--- a/contrib/vstudio/vc9/zlib.rc
+++ b/contrib/vstudio/vc9/zlib.rc
@@ -2,8 +2,8 @@
 
 #define IDR_VERSION1  1
 IDR_VERSION1	VERSIONINFO	MOVEABLE IMPURE LOADONCALL DISCARDABLE
-  FILEVERSION	 1, 2, 12, 0
-  PRODUCTVERSION 1, 2, 12, 0
+  FILEVERSION	 1, 2, 13, 0
+  PRODUCTVERSION 1, 2, 13, 0
   FILEFLAGSMASK	VS_FFI_FILEFLAGSMASK
   FILEFLAGS	0
   FILEOS	VOS_DOS_WINDOWS32
@@ -17,7 +17,7 @@ BEGIN
 
     BEGIN
       VALUE "FileDescription", "zlib data compression and ZIP file I/O library\0"
-      VALUE "FileVersion",	"1.2.12\0"
+      VALUE "FileVersion",	"1.2.13\0"
       VALUE "InternalName",	"zlib\0"
       VALUE "OriginalFilename",	"zlibwapi.dll\0"
       VALUE "ProductName",	"ZLib.DLL\0"
diff --git a/contrib/vstudio/vc9/zlibstat.vcproj b/contrib/vstudio/vc9/zlibstat.vcproj
index 61c76c7c5bc5..1bf15635ad0e 100644
--- a/contrib/vstudio/vc9/zlibstat.vcproj
+++ b/contrib/vstudio/vc9/zlibstat.vcproj
@@ -47,7 +47,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"
+				AdditionalIncludeDirectories="..\..\.."
 				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"
 				ExceptionHandling="0"
 				RuntimeLibrary="1"
@@ -121,7 +121,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"
+				AdditionalIncludeDirectories="..\..\.."
 				PreprocessorDefinitions="ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64"
 				ExceptionHandling="0"
 				RuntimeLibrary="3"
@@ -195,7 +195,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"
+				AdditionalIncludeDirectories="..\..\.."
 				PreprocessorDefinitions="ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64"
 				ExceptionHandling="0"
 				RuntimeLibrary="3"
@@ -268,8 +268,8 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				InlineFunctionExpansion="1"
-				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"
-				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ASMV;ASMINF"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"
 				StringPooling="true"
 				ExceptionHandling="0"
 				RuntimeLibrary="0"
@@ -295,7 +295,6 @@
 			<Tool
 				Name="VCLibrarianTool"
 				AdditionalOptions="/MACHINE:X86 /NODEFAULTLIB"
-				AdditionalDependencies="..\..\masmx86\match686.obj ..\..\masmx86\inffas32.obj "
 				OutputFile="$(OutDir)\zlibstat.lib"
 				SuppressStartupBanner="true"
 			/>
@@ -343,8 +342,8 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				InlineFunctionExpansion="1"
-				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"
-				PreprocessorDefinitions="ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ASMV;ASMINF;WIN64"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64"
 				StringPooling="true"
 				ExceptionHandling="0"
 				RuntimeLibrary="2"
@@ -370,7 +369,6 @@
 			<Tool
 				Name="VCLibrarianTool"
 				AdditionalOptions="/MACHINE:AMD64 /NODEFAULTLIB"
-				AdditionalDependencies="..\..\masmx64\gvmat64.obj ..\..\masmx64\inffasx64.obj "
 				OutputFile="$(OutDir)\zlibstat.lib"
 				SuppressStartupBanner="true"
 			/>
@@ -418,7 +416,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				InlineFunctionExpansion="1"
-				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"
+				AdditionalIncludeDirectories="..\..\.."
 				PreprocessorDefinitions="ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64"
 				StringPooling="true"
 				ExceptionHandling="0"
@@ -491,7 +489,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				InlineFunctionExpansion="1"
-				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"
+				AdditionalIncludeDirectories="..\..\.."
 				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"
 				StringPooling="true"
 				ExceptionHandling="0"
@@ -565,7 +563,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				InlineFunctionExpansion="1"
-				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"
+				AdditionalIncludeDirectories="..\..\.."
 				PreprocessorDefinitions="ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64"
 				StringPooling="true"
 				ExceptionHandling="0"
@@ -639,7 +637,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				InlineFunctionExpansion="1"
-				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"
+				AdditionalIncludeDirectories="..\..\.."
 				PreprocessorDefinitions="ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64"
 				StringPooling="true"
 				ExceptionHandling="0"
@@ -733,58 +731,6 @@
 				>
 			</File>
 			<File
-				RelativePath="..\..\masmx64\inffas8664.c"
-				>
-				<FileConfiguration
-					Name="Debug|Win32"
-					ExcludedFromBuild="true"
-					>
-					<Tool
-						Name="VCCLCompilerTool"
-					/>
-				</FileConfiguration>
-				<FileConfiguration
-					Name="Debug|Itanium"
-					ExcludedFromBuild="true"
-					>
-					<Tool
-						Name="VCCLCompilerTool"
-					/>
-				</FileConfiguration>
-				<FileConfiguration
-					Name="Release|Win32"
-					ExcludedFromBuild="true"
-					>
-					<Tool
-						Name="VCCLCompilerTool"
-					/>
-				</FileConfiguration>
-				<FileConfiguration
-					Name="Release|Itanium"
-					ExcludedFromBuild="true"
-					>
-					<Tool
-						Name="VCCLCompilerTool"
-					/>
-				</FileConfiguration>
-				<FileConfiguration
-					Name="ReleaseWithoutAsm|Win32"
-					ExcludedFromBuild="true"
-					>
-					<Tool
-						Name="VCCLCompilerTool"
-					/>
-				</FileConfiguration>
-				<FileConfiguration
-					Name="ReleaseWithoutAsm|Itanium"
-					ExcludedFromBuild="true"
-					>
-					<Tool
-						Name="VCCLCompilerTool"
-					/>
-				</FileConfiguration>
-			</File>
-			<File
 				RelativePath="..\..\..\inffast.c"
 				>
 			</File>
diff --git a/contrib/vstudio/vc9/zlibvc.vcproj b/contrib/vstudio/vc9/zlibvc.vcproj
index c9a89471e703..f11dd1fbf3c6 100644
--- a/contrib/vstudio/vc9/zlibvc.vcproj
+++ b/contrib/vstudio/vc9/zlibvc.vcproj
@@ -53,8 +53,8 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"
-				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI"
 				ExceptionHandling="0"
 				RuntimeLibrary="1"
 				BufferSecurityCheck="false"
@@ -81,7 +81,6 @@
 			<Tool
 				Name="VCLinkerTool"
 				AdditionalOptions="/MACHINE:I386"
-				AdditionalDependencies="..\..\masmx86\match686.obj ..\..\masmx86\inffas32.obj"
 				OutputFile="$(OutDir)\zlibwapi.dll"
 				LinkIncremental="2"
 				SuppressStartupBanner="true"
@@ -150,8 +149,8 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"
-				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF;WIN64"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64"
 				ExceptionHandling="0"
 				RuntimeLibrary="3"
 				BufferSecurityCheck="false"
@@ -177,7 +176,6 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="..\..\masmx64\gvmat64.obj ..\..\masmx64\inffasx64.obj "
 				OutputFile="$(OutDir)\zlibwapi.dll"
 				LinkIncremental="2"
 				SuppressStartupBanner="true"
@@ -245,7 +243,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"
+				AdditionalIncludeDirectories="..\..\.."
 				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64"
 				ExceptionHandling="0"
 				RuntimeLibrary="3"
@@ -340,7 +338,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				InlineFunctionExpansion="1"
-				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"
+				AdditionalIncludeDirectories="..\..\.."
 				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI"
 				StringPooling="true"
 				ExceptionHandling="0"
@@ -440,7 +438,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				InlineFunctionExpansion="1"
-				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"
+				AdditionalIncludeDirectories="..\..\.."
 				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64"
 				StringPooling="true"
 				ExceptionHandling="0"
@@ -538,7 +536,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				InlineFunctionExpansion="1"
-				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"
+				AdditionalIncludeDirectories="..\..\.."
 				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64"
 				StringPooling="true"
 				ExceptionHandling="0"
@@ -636,8 +634,8 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				InlineFunctionExpansion="1"
-				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"
-				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI"
 				StringPooling="true"
 				ExceptionHandling="0"
 				RuntimeLibrary="0"
@@ -666,7 +664,6 @@
 			<Tool
 				Name="VCLinkerTool"
 				AdditionalOptions="/MACHINE:I386"
-				AdditionalDependencies="..\..\masmx86\match686.obj ..\..\masmx86\inffas32.obj "
 				OutputFile="$(OutDir)\zlibwapi.dll"
 				LinkIncremental="1"
 				SuppressStartupBanner="true"
@@ -737,8 +734,8 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				InlineFunctionExpansion="1"
-				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"
-				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF;WIN64"
+				AdditionalIncludeDirectories="..\..\.."
+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64"
 				StringPooling="true"
 				ExceptionHandling="0"
 				RuntimeLibrary="2"
@@ -766,7 +763,6 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="..\..\masmx64\gvmat64.obj ..\..\masmx64\inffasx64.obj "
 				OutputFile="$(OutDir)\zlibwapi.dll"
 				LinkIncremental="1"
 				SuppressStartupBanner="true"
@@ -836,7 +832,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				InlineFunctionExpansion="1"
-				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"
+				AdditionalIncludeDirectories="..\..\.."
 				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64"
 				StringPooling="true"
 				ExceptionHandling="0"
@@ -950,58 +946,6 @@
 				>
 			</File>
 			<File
-				RelativePath="..\..\masmx64\inffas8664.c"
-				>
-				<FileConfiguration
-					Name="Debug|Win32"
-					ExcludedFromBuild="true"
-					>
-					<Tool
-						Name="VCCLCompilerTool"
-					/>
-				</FileConfiguration>
-				<FileConfiguration
-					Name="Debug|Itanium"
-					ExcludedFromBuild="true"
-					>
-					<Tool
-						Name="VCCLCompilerTool"
-					/>
-				</FileConfiguration>
-				<FileConfiguration
-					Name="ReleaseWithoutAsm|Win32"
-					ExcludedFromBuild="true"
-					>
-					<Tool
-						Name="VCCLCompilerTool"
-					/>
-				</FileConfiguration>
-				<FileConfiguration
-					Name="ReleaseWithoutAsm|Itanium"
-					ExcludedFromBuild="true"
-					>
-					<Tool
-						Name="VCCLCompilerTool"
-					/>
-				</FileConfiguration>
-				<FileConfiguration
-					Name="Release|Win32"
-					ExcludedFromBuild="true"
-					>
-					<Tool
-						Name="VCCLCompilerTool"
-					/>
-				</FileConfiguration>
-				<FileConfiguration
-					Name="Release|Itanium"
-					ExcludedFromBuild="true"
-					>
-					<Tool
-						Name="VCCLCompilerTool"
-					/>
-				</FileConfiguration>
-			</File>
-			<File
 				RelativePath="..\..\..\inffast.c"
 				>
 			</File>