Strawberry perl comes with a shipload of useful bundled modules and a working cpan.bat. I've been playing with it over the weekend, and the only problems I had with installing new modules from CPAN is the SSL related modules and OS specific modules like BSDresource.

ActivePerl comes with ppm, which has most used modules available in a few keystrokes. Nothing is holding you from increasing your possibilities here. Try to imagine the time you will have to waste explaning the end-user why this oh so simple script suddenly stops working. I can assure you it is more than the time you need to convince him/her to install something good.

We've entered an era where updating or installing basic modules that have a proven value, is made very very easy, and will pay off over writing code, as simple as it may seem, that will provide you with headaches in the future.