1. Start the HTTP server Administration (ADMIN) facility. (See How to start the HTTP server Administration (ADMIN) facility).
2. Expand Server Properties and click Dynamic Content and CGI.
3. Click the Server Side Includes tab in the form and select the option Allow Server Side Files with CGI program calls inside.
4. Add the file extension .pgm (i.e.. a full stop followed by pgm) into the file extensions.
5. Click OK.