I solved the problem and have no experience in Perl or IIS (I guess now I have a little) All you have to do is this: Relates to IIS 5 or higher using ActivePerl 5.x for Win32 using ISAPI. Go into the properties of CGI virtual directory.. Click "Configuration" button on the Virtual Direcotry tab Click on your .pl extension and click edit Edit the line to reflect C:\perl\bin\perl.exe -T "%s" %s Apply changes.