[Using Sakai] Recommended Windows platform for serving up Sakai?

[will at serensoft.com]

So far all our Sakai installs are on Linux, but it compiles under
Windows as well, so...

Which version of window server is Sakai 2.5.x / 2.6.x "certified"
(recommended) to run on?  2003, 2008,
standard and/or Enterprise?

If you have success stories and/or horror stories for any particular
Windows platform, we're all ears. :)

-- 
will trillich
"If you do not change direction, you may end up where you are
heading." -- Lao Tzu