- Please, follow the instructions in file:/usr/local/share/doc/mod_dtcl/INSTALL.html (where /usr/local may be replaced by your machine's setting for PREFIX) to enable the mod_dtcl's usage. Note, that the dtcl.tcl mentioned in the instructions is installed as /usr/local/share/mod_dtcl/dtcl.tcl . The mentioning of mod_dtcl is already in the Apache's config file, but it is commented out -- you have to uncomment it manually. -