in reply to Which Perl version shall I use?

Which version you might use on a Windows platform depends on the nature of your use. If you're producing code for yourself you can be experimental and do whatever appeals to you. If you're producing Perl versions and code for, say, 50000 Windows based laptops and have very little time to do it in, then already assembled packages and ease of installation factor in a great deal.

This is especially true if you're going to support it all after the installation, and perhaps even more so if you eventually intend to pass off the support to someone else.

dwm.