I've got IIS 6 (Win2003) and am trying to get PHP running. I am using the PHPBB2 product as a PHP test. I've configured the application extension on both the master web properties and the virtual server I'm using. I have also set the web service extensions page appropriately. I've tried both ISAPI and CGI modes of PHP operation. The permissions on the PHP directory and the web root are set for full control to everyone. When I request a PHP page, I get a 404 error. I can't think of anything else to try. Please help.