What I do when I have to use Windows is install apache on it, then run the scripts from localhost. If you don't want to do that, then an alternative is to make sure your scripts all use CGI.pm and set it's debug mode on, that way you can test them from the commandline and CGI.pm will prompt for the form input.

Installing apache isn't that big a deal though, and it gives you a much better development platform where you can test virtually everything locally.

Scott