In order to run CGI , you must add the CGI program executable to the Web Service Extension Restriction List (WSERL). You can do this in one of two ways:
Use the Web Service Extension section of the IIS Manager MMC to allow all CGI programs to run, regardless of whether they are entered in the WSERL.
Note: this option is easier to implement but somewhat less secure in that it may allow other CGI programs to run on the server.