Crysystem.dll

Whenever I launch the game i get an error after the ncsoft logo saying crysystem.dll error program must close. I've reinstalled the gamez launcher*new one*. I've even reinstalled Aion and gotten the replacement bin. The game comes up with this error after I replace the item.pak. This wouldnt be such a pain if I had known I would get this error, i woulda farmed DP if I had known >.> Any ideas on what to do?

btw it says something about acess denied or something as though its detecting the item.pak as a hacking program?