I really appreciate you going to all the trouble you have. I have already spent 3+ hours today (not counting last night) researching the various options outlined in this thread. All total I've spent at least 8 hours on the project so far and I'm still in the research stage. But since most all of that work has been on my own dime, I can probably finish up with only 8 hours at work. It has been a frustrating experience (and people think Unix is arcane?). As for using Win32::API and GetVersionEx, I haven't been able to come up with a single Perl example yet and from what I've seen so far, it's methods are far too obscure for my taste.

I'm definitely going to use Win32::GetOSVersion(). It is just a shame that it is so difficult to find up-to-date values for the various OS versions. As for your question, I don't know about the values for XP but perhaps others reading this thread might be able to help. I'm sure I won't be needing that info for several months.

If anyone knows of one, could you please post a link to a more complete reference for the various OS values than are in the perldocs?

Thanks again.

"Make everything as simple as possible, but not simpler." -- Albert Einstein