Windows 2008 Standard x64 (should be same as Enterprise)
More Working Games without any tricks:
LinCity ( http://lincity.sourceforge.net/ ) – I thought majority of open source games should run without a hitch.
Lord of The Rings – Battle for Middle Earth II – works! You need the gameux.dll fix + the fix listed in this forum post:
I heard this works for Battle for Middle Earth I and other games!
Neverwinter Nights 2 (CRC copying VO.zip and then a whole bunch of files, which if you ignore all will always end in a critical error – this is in fact identical to the issues I had trying to install it on Windows 2003 x86/32-bit).