PHP and Apache

I have added the following things to my httpd.conf file, yet I get this error when I try to run a .php file..

Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator, URL and inform them of the time the error occurred, and anything you might have done that may have caused the error.

More information about this error may be available in the server error log.

This is what I added to my conf file.

AddType application/x-httpd-php .php .phtml
Action application/x-httpd-php "c:/php/php.exe"
ScriptAlias /cgi-bin/ "C:/ftp/users/straterra/cgi-bin/"


What else do I need to do?