Enabling FastCGI support in IIS

FastCGI module is disabled in default installation of IIS. The steps to enable it differ based on the version of Windows being used.

To enable FastCGI support on Windows Vista SP1 and Windows 7:

In the Windows Start Menu choose "Run:", type "optionalfeatures.exe" and click "Ok";

In the "Windows Features" dialog expand "Internet Information Services", "World Wide Web Services", "Application Development Features" and then enable the "CGI" checkbox;

Click OK and wait until the installation is complete.

To enable FastCGI support on Windows Server 2008 and Windows Server 2008 R2:

In the Windows Start Menu choose "Run:", type "CompMgmtLauncher" and click "Ok";

If the "Web Server (IIS)" role is not present under the "Roles" node, then add it by clicking "Add Roles";

If the "Web Server (IIS)" role is present, then click "Add Role Services" and then enable the "CGI" checkbox under "Application Development" group;

Click "Next" and then "Install" and wait for the installation to complete.

更詳細的可以參考：http://www.php.net/manual/en/install.windows.iis7.php