hi, thx for the fast answer 1. i create sfx files simply with winrar. I have very bad experiences with the forum searches (for example, you can give it a try and search for "winamp lite 5.03a". you'll get hundred of threads, and nothing has anything to do with winamp) 2. i think you misunderstood me... my applications and drivers which will be automatically installed at startup were being copied during the setup of windows xp on the hdd. so once the progams and drivers are installed, the folders are useless. so can i delete them with a simply command (probably with RD /S /Q %systemdrive%\Drivers in my start.cmd?) 3. searching application thread is very useless, look at 1....