Error when trying to replace .exe.

[DABhand]

If your using vista, turn off UAC... Goto START > CONTROL PANEL > ACCOUNTS > Select an account you use from list and bottom option is to turn off UAC.

UAC stops people from extracting things into certain folders.

But I think Joe is right, probably AV has blocked it... So set your game folder as an exception, so when the crack is pasted there it should be ok.