Anyways I'm now sharing GameBooster 2.4.1 which is latest version with key.
Game Booster turns your slow PC into a fast gaming box within a click.
Designed to help optimize your PC for smoother, more responsive game play in the latest PC games with the touch of a button, Game Booster helps achieve the performance edge previously only available to highly technical enthusiasts.
It works by updating hardware drivers, downloading essential gaming tools, tweaking system settings for gaming, defragmenting game directories, temporarily shutting down background processes, cleaning RAM, and intensifying processor performance.
Boosting Game Performance
Game Booster v2 can easily and fast close background processes and unnecessary Windows services, to speed up you game playing and avoid possible conflicts and incompatibility. With the innovative "Enhanced 3rd parties' services detection" technology, Game Booster v2 can automatically detect and close more unnecessary background services.
Tweak System for Top PC Performance
Game Booster v2 can tweak your PC for the ultimate system and Internet speed with a single click.
Current Version: 2.4.1
File size: 4.53 MB
Operating system: Windows 7, Vista, XP and 2000
Release date: JUN 20, 2011
Key features in Game Booster 2:
+ Play Games Lag-free
+ Fast Game Launching and Response
+ Keep Your Hardware Drivers Up-to-Date
Here is the key I'm using
Here the link website for u guy read n more info