This is Business::OnlinePayment::PayflowPro, an Business::OnlinePayment backend module for Verisign Payflow Pro. It is only useful if you have a merchant account with Verisign Payment Services: http://www.verisign.com/products/payment.html and the "Payflow Pro SDK": https://manager.verisign.com/ It is based on Business::OnlinePayment::AuthorizeNet written by Jason Kohles. This module has been updated and now implements Authorize.Net API version 3.1. Ivan Kohler WWW: http://search.cpan.org/dist/Business-OnlinePayment-PayflowPro/