Ive used resource hacker a lot before, i have my own personal ad-remover for aim made from it, u kan edit just about everything except that field. The string you listed opens winnt.exe. im still not posotive of the difference between winnt.exe and winnt32.exe but i know 32 is the one that starts the instalation, and hte bat file calls winnt32.exe. so thus calling the bat file will start the unattended instalation in an upgrade mode. The trick is getting the bat file called from the setup.exe. The string you told me to mod, ive tried it before, and i double checked it, it doesnt call .bat when u mod it. Im not sure what it does. Ive never used restuner before and after trying it, i realize it just does what reshacker can do for free. Im still trying to perfect this, more ideas are welcome, o and btw, what is usetep.exe??