Your probably having trouble getting CA to start even if you have removed these hacks. SO UNINSTALL CA AND REINSTALL. AFTER YOU HAVE REINSTALLED FOLLOW THESE DIRECTIONS. IT WILL WORK.
If you have Vista listen very carefully... to get this to work you must go to you control panel and click UAC *user account* then what you want to do is click on turn user account control on or off, click it and check the little box so that it is off. Ok now it's going to prompt you to restart, don't do it.
Now what you want to do is go back to the control panel and click on system. Scroll down to were it says *Computer name, domain and work group settings* and click change settings.
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Now a little menu should come up, click advanced and under performance click settings.
Ok now another menu will cum up and what you want to do is click Data Execution Prevention, DEP for short. Click turn on DEP for all programs and services except those that I select. Click add and browse your combat arms folder and select CombatArms.exe and add it.
Make sure CombatArms.exe is checked after you add it and hit apply. Now it is going to prompt you to restart again, don't. Now extract MPGH files into the CA folder. YAY! You can restart your comp now and after just start CA normally, obviously you won't be prompted when you do start it