Hello this has probably been asked a thousand times before so if you can point me to a thread please do so. Can anyone help. I wish to modify certain files of my windows install. I extract the files and then try to create a new cab file. But it's never the same size as the original. I want to disable wfp on only certain files. Windows fails when copying files that I've hacked. I just replace the files in the i386 folder but I've read things all over the net. What's the real deal??? I'm not a newbie and can follow along. Any help would be much appreciated. MarkTen Please NOW, in Microsoft Windows XP section, use [TAGS] in your topic's title. See rules. --Sonic