What!
That advertisement just made me hate it more! What the hell, is that supposed to make people want to buy Vista? They ought to come up with something better than that.
Anyway, when I bought Tiberium Wars, I had no idea it was recommended for Vista. Lyckily it was possible to play on XP too, so I passed on the minimum on
http://www.systemrequirementslab.com/referrer/srl