Warning!!!!

Death is right, battle.net is not allowed to put anything on your computer, I read it once, somewhere I think when I installed a game, or something.

remember when you installed your game and then patched it up, and there was a little checkbox asking if you wanted to submit random computer details to blizzard for a survey? i'm 95% sure that's all extrawork.dll is. it doesn't have anything to do with detecting hacks.

maybe
ill check