Why another fastcgi module? FCGI is working perfectly on windows (with the new fastcgi implementation for iis 5 and 6). You can't just pick a random cgi script and expect it to work with fastcgi - it's not possible. Apache::Registry was designed to do this, it has been improved for years and it still has some special cases.

BTW, PerlEx is available and comes bundled with the ActivePerl disto. PerlEx is now free as ActivePerl.

BTW2, if you are going to use fastcgi on windows make sure to compile your own perl with ITHREADS disabled. They are useless with fastcgi and you will gain about 20% boost in performance. ActivePerl has ITHREADS enabled.