You'll most likely need to convert the Perl POD in html format to the windows help file format. Search google for HTML to HLP conversion utility. I found this one pretty quickly:
http://www.helpmaster.de/hlp-converter-htmltohelp.htm.
You can get all the Perl POD, and some Windows specific Perl docs, (in HTML format) from the ActiveState perl binary @
http://www.activestate.com/.
If you do find it already compiled in hlp format, please post back. Or if you compile it yourself, put it up for download
~Charlie