Armaegis,
I have a computer guy because I'm pretty ignorant. He did it from home logging on to the computer. He went into some of the files from a DOS window and edited some of the Windows files. The virus has already rewritten this file so it needs to be un-edited.
I watched what he was doing and understood what was going on. But I didn't get the file name of what he was working on. He had to save a copy of the file, edit it then replace the active file with the edited copy.