While I do like cygwin in general, I don't like to use it's perl for any heavy lifting. File name translations and dependence on the cygwin environment make it's value outside the cygwin shell limited.

For General use I find Strawberry perl very useful & use it at home.

At work, I have a subscription to Activestate's PDK, giving me access to the Perltray tool. Also Activestate Perl comes with ISAPI bindings in case you need to play nice with an IIS server.

TJD