Hi everyone, and thank you for all the good work. I've almost done my unattend CD with extras. Actually, I have only one batch file called by GuiRunOnce. I extracted the main lines of my .bat file (which does all the tweaks I need) (in this order) : - Removing wallpapers, shortcuts and useless screensavers... - Replacing uxtheme and SFC_OS... - Applying Registry Tweaks... - Installing Winrar 3.1b5 - Installing DirectX 9.0b... - Applying SP2 Hotfixes and patches... (30 hotfixes with switches) - Removing useless folders... (ex: RMDIR "%systemdrive%\Program Files\chat" /S /Q) I think I need to create my user account before installing Winrar and the registry tweaks. I browsed the tutorial and the forums but I didnt find anything clear about it. And I'd like to know if its possible to modify only a couple of files on a CDRW without having to go over all the process : copy all files on the HD, paste the modified versions of the files and burn again the damned boot CD ... Thanx for any help (I hope my english is not too bad)