A more little info. Looks like I can do it, just not in the "program files". I can extract in the download folder then move the contents where I want.
That is a protection built into win7 x64 to keep people from screwing up system directories .
The program doing the extraction would need admin privileges to extract directly to those directories.
A couple of months ago I extracted a 7zip file that installed a rootkit, a trojan downloader, infected the autorun.inf on 2 different usb keys, and started one of those lovely DNS redirection jobs, and probably a few other things I don't even know about. I was never asked for admin permission but it did make the screen go black for a second. Thankfully, the porn I was extracting was halfway decent.
