Running programs as FastCGI instead of CGI typically requires some webserver configuration. The mod_fastcgi plugin for Apache offers different options:

• Have a custom program file extension, like .fcgi or .fpl. This is configured via AddHandler.
• Have a special location reserved for FastCGI programs (comparable to the typical /cgi-bin/ location). This is configured via SetHandler.
• Have a special location (URL prefix) reserved for a single FastCGI program under control of the Apache server. This is configured via FastCGIServer.
• Have a special location (URL prefix) reserved for a single FastCGI program controlled by some other program (init, daemontools, ...). This is configured via FastCGIExternalServer.

When you place a FastCGI capable CGI program in /cgi-bin/ (or any other location configured for CGI scripts), it will run in CGI mode, not in FastCGI mode. The same happens when the program name ends with .cgi (or any other extension mapped to plain CGI).

So, perhaps renaming or moving your program may be sufficient. Ask the webserver administrator / hoster support.

Alexander