Windows support is currently experimental. Tested under IIS with cgi-fcgi.exe and Apache with mod_fastcgi. Compilation: Currently only supports Non-Thread safe compilation, however, that is realy all that is needed :) Get the devkit from www.fastcgi.com, build it. Create the directories php4/sapi/fastcgi/fcgi php4/sapi/fastcgi/fcgi/include php4/sapi/fastcgi/fcgi/lib Place headers and libs in the include and lib directories. Load the php.dsw, and compile. IIS configuration: Under the application configuration in the IIS configuration program, use: .php C:\php-fcgi\cgi-fcgi.exe -connect php c:\php-fcgi\php-fcgi.exe Apache Configuration: LoadModule fastcgi_module modules/mod_fastcgi.dll AddHandler fastcgi-script fphp php The scripts require the bang line as the first line of the script to work with mod_fastcgi, #!c:/php-fcgi/php-fcgi.exe TODO: make 'thread-safe' compilation, though it isn't necessary.