Call of Duty: Modern Warfare 2 & 3
VAC is enabled on all multiplayer servers, public and private. Any modifications to the game other than editing config files can result in a VAC ban. Examples of such modifications include but are not limited to console enablers, VAC disablers, and server hosting mods.
= cheating AND modding will result in a Ban (sooner or later)!
You better do not use 3party software!
In order to get higher FPS optimize your config_mp.cfg, which is allowed: