Testing for win95 vs. win98 vs. winNT?

[Gordon McMillan]

David Ascher writes:
> How can a Python program guess with a stock 1.5.2 (none of those
> fancy shmancy aussie win32 extensions!) whether it's running on
> win95, win98 or winNT?  (In truth, I care only about whether a
> specific DLL is installed, but that correlates with win95 vs. the
> others).

By how hard a time os has keeping a straight face when you query 
for platform <wink>.

- Gordon