Since you refer to using Komodo on Windows, I think what you are asking for is not simply a Perl editor, but a Perl ide (which is what Komodo really is). If this is the case, then you might want to look at
. However, don't expect it to be as good as Komodo.
You say you want free, and that may be a necessary requirement, but if you can spare $29.95 and you meet the requirements, you should take a look at
.