PHP Manual . ... This section contains notes and hints specific to Oreilly Website Pro. This list describes how to set up the PHP CGI binary or the ISAPI module to work with Oreilly Website Pro on Windows. ... From the List select "Associations" and enter the desired extension ( .php ) and the path to the CGI exe (ex. c:\php\php.exe ) or the ISAPI DLL file (ex. c:\php\sapi\php4isapi.dll ). Select "Content Types" add the same extension ( .php ) and enter the content type. ...