Sorry if I sound dumb at this but I'm pulling my hair out with dispair here. I've tried everything I can think of and I can't seem to find the exact answer to this problem. I'm using nLite to create the unattanded setup file. Created an $OEM$ folder. Using Virtual PC to test the image file and installation In the $OEM$ folder I've put the usual basic security programs, i.e antivirus, firewall, antispyware, directx. In the winnt.sif file under [GuiRunOnce] I've tried Command0=%systemdrive%\$oem$\start.cmd Then during windows setup get an error message "C:\$OEM$\start.cmd not found" So tried Command0=%source%\$oem$\start.cmd And nothing happens at all. After installation completes, I did a search for the $OEM$ folder and it doesnt exist (enabled system files and folder view) Can someone please tell me what I'm doing wrong? Thank you so much.