Will a non supported application run?

Adroid

Distinguished
So on the command and conquer 3 box it says "This game is not supported for 64-bit OS... Well what the heck does that mean? Will it run good or not? Will my computer spontananeusly combust within minutes of installtion? (yes of course im joking).

But seriously, anyone trying running it on a 64 bit system? Looks kinda fun. I mainly play Supreme Commander and Company of Heros (which I really don't like the interface or the unit controll, but its still fun to play sometimes for a change of pace).

Anyone got further recommendations for good RTS? Can't wait for starcraft 2!

Running a q6600 @ 3.0Ghz
4 gig corsair ddr2 800
64 bit vista ultimate
gtx 260