WimUtil.exe is crashing under windows 8 x64.Well someone forgot to update his mpress tool
@wingersWas not directed to you. WimUtil was compiled with an old version of mpress execompressor and needs to be recompiled.You could as a temporary solution, copy the wimutil.exe from the x86 folder into the x64 overwriting the troublesome one .
hehe, why didn't you write this way at first place