Correct me if I'm wrong, but... When I use "batch script" (like @ECHO OFF and ECHO.) for my RunOnceEx.cmd rather then the kind of script used here, then the only place where I should list RunOnceEx.cmd is in WINNT.SIF like this right? [GuiRunOnce] %systemdrive%\Install\RunOnceEx.cmd Or does RunOnceEx.cmd start autmatically like WINNT.SIF? That way you don't have to list it anywere Could someone please give me a correct answer for this or else I can't make my own CD