First of all, download a file from here (all credit goes to tomsons26)http://www.moddb.com/downloads/proper-windows-7-fix-for-act-of-war
****But here's the thing, the guide is somewhat misleading so do not follow the guide there, instead, do this :
Ignore the EugLoadingBar the guide told you to, set only the ActofWar.exe in Vista SP1 compatibility mode
Apply the dll you downloaded from there.
Then you should be able to run the game, HOWEVER -> some people may experience another error game is already running, caused by the "Run as Admin?"question box, if this happens to you, try unchecking the "run as administrator" box in ActofWar.exe, if it still doesn't work you will have to try fiddle around with your Windows Security options, If you can get rid of the question box, the game WILL guarantee to run trust me.
Please spread this info to your friends as well if theycan't get the game running, they need to know this, hopefully this thread can be more visible to you people.