Exception code: 0xC0000005 (-1073741819) ACCESS_VIOLATION.
System memory: 1024 Megabytes total, 224 Megabytes free
I've copied the two lines above from your exception log. That exception code is related to a problem with your ram and can be cause my a bad driver, spyware, or bad ram. You can read more about it
here.
The second line gives me two vital pieces of information. It tells me how much ram you have and how much you have available to run your game. The game needs 256 mb to run the game, but there's only 224 mb free, in spite of you having over 1gb. Something may be running in the background to eat up your ram, or you might have a bad stick.