on windows 2003 web server edition:
go to:
>start>administrative tools>Internet Informations Services (IIS) Manager
Selected the Computer and then right mouse click and select properties on "Web Sites"
go to the "Home Directory" Tab
Select the "Configuration..." button
Now you have a dialog box up with the extensions and where they work from, here is the following info for php and cgi, THIS WILL AFFECT YOUR GLOBAL CONFIGURATION:
click add button:
extension: php
Executable: "C:\Program Files\SWsoft\Plesk\Php\php.exe"
Extension: php3
Executable: "C:\Program Files\SWsoft\Plesk\Php\php.exe"
there is no info for CGI....
good luck - I do not gurantee results....