M2TW on Vista

[Husar]

Technically Omanes should be right, practically I didn't notice any big performance drop when I switched, maybe I lost 1 or 2 fps on average, but that's hardly noticeable at around 20-30 fps and more.
My specs are C2D E6600
2GB DDR 2 667
and a 512MB GF 7950GT

If Vista uses mainly more RAM, that shouldn't be a big issue since M2TW seems to be rather RAM friendly IMO(I can run programs in the background like ICQ and MSN without any noticeable performance loss and Alt-Tabbing is always VERY fast for a game).