I've also run it on my laptop with Windows 7 and had no issues.
I am currently looking to get the viral achievement on NBA 2k9, if you can help me please msg me on LIVE.
Halo Wars ~ 1150/1200 l
Halo Reach ~ 1700/1700 l
Halo CE Anniversary ~1000/1000 l
Halo 2 Vista ~ 1000/1000 l
Halo 3 ~ 1750/1750 l
Halo 3 ODST ~ 1000/1000 Halo Waypoint ~ Level 64 l
Lifetime Halo Achievements ~ 7600/7650