FPS BOOST v3 file - Grand Theft Auto IV

For all users:
Game Booster - It disables unnecessary programs that run on your computer while you are playing a game, you can easily renable all the programs once you finish playing your game. So its safe and easy to use.
Contig - Its a defgramentation program that does single folders, so its very handy for optimizing quickly only what you want.

Instructions for Contig:
- Copy contig.exe to game dir (where your game files are located), now create a new text document in the same folder and write this inside

contig -v -s %CD%
pause

Rename it to start_contig.cmd and Doubleclick it, let it finish loading. Thats all.

Windows 7 and Vista users:

Those operating systems will deliberately park some of your cores which will decrease FPS substantially in CPU eating games like GTA IV.
In my GTX570SLI setting I had about 110 FPS ingame onscreen. After changing to GTX680 I was really disappointed as I had meager 60 to 70 FPS. Now that I changed registry settings after reboot I get instantly about 100 FPS ingame (depending on the scene).

How To Disable CPU Core Parking For Multi-Core Processors
Youtube.com

So if You don't like to mess with registry here's a simple tool:

Disable CPU Core Parking Utility
Coderbag.com