Well, who knows if you\'re able to play the game, you havn\'t even installed it yet.

Here\'s my advice. Firstly, delete the .exe file and recompile the .part files again. If this new .exe file still gives you this error, delete both it and the .bat file and download the .bat file again (make sure it properly downloads, not just copies from a temp folder). If, after compiling again, you STILL receive the error, one or more of your .part files are corrupt.
In this case, go to the downloads page and get the MD5 file signature checker to see which ones and download them again.