I personally highly recommend that you install cygwin. Within the setup you can specify Perl to be installed. This would enable you to use perldocs.

Saying so seems to imply that you can't use perldoc unless you install cygwin('s perl), which is not true. That's not what you say and I know the difference between a sufficient and a necessary condition, but then again the particular wording conveys a sense for the latter in addition to clearly stating the former, so your claim is likely to be misleading.