Windows 7 lagg on crossfire

i can help you . i can help you....
people had the same problems with steam games.

this is the entire thread.
http://forums.steampowered.com/forums/showthread.php?t=1043281

quick rundown...

Read this and follow the instructions. I had both ping and FPS lag after I upgraded to Win7 64-bit, this fixed everything.

Even if this doesn't fix the problem you're having, it will not harm anything to do this, so you might as well go for it and see what happens. There is a decent chance it might fix your problem.
That's the reason why I asked if he has lag without the sound device. Also but don't do nothing to about the MMCS Service. Quick Fix:

The best way to test if you have this problem is to disable your sound device in Device Manager and then see if the lag persists. If it does, you have some other issue. If the lag goes away, re-enable your sound device and try the following fix:

Quote:
Leave the multimedia class scheduler service running, but disable its network throttling "feature":

* Open regedit
* Go to: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Multimedia\SystemProfile
* There will be an entry for network performance throttling, default value is 10; set it to FFFFFFFF hex (willl look like 0xFFFFFFFF to the right of the entry)
* Reboot




hope it helps you. without it hurting me

glad i could help. just remember to keep an eye on the forums to help others. it helps the game