Error: couldn't spawn child process: (from log file)

I'm trying to run CGI file and the URL i'm using is:
http://localhost/cgi-bin/names.cgi

and the names.cgi is located at:
C:/Program Files/Apache Software Foundation/Apache2.2/cgi-bin/names.cgi

Every time I try to run this from the browser I get the following error in the error log:Error: couldn't spawn child process:

What does this mean or what I'm i doing wrong?

Thanks

re: Error: couldn't spawn child process: (from log file)

Resolved, I needed to change the shebang line to where perl.exe exists.