My apologies and I am not finding fault, but the I386 Folder in graphic should be separated by an extra couple of folders. When you are working on the $OEM$ (Applications Folder(s)) the I386 Folder is not even visible on branch. There is actually (if you are also installing PnP Drivers to be installed during Installation) two (2) $OEM$ Folders, one (1) in the I386 Folder, which creates a branch when you add your Drivers. A second $OEM$ Folder is situated (on my Folder Tree) two (2) Folders above the I386 Folder. When you add Application(s) Folders to this $OEM$ Folder, a second branch will be created. The I386 Folder should should be separated, $OEM$ Distribution Folders The rest of the information is correct, but, "a picture paints a 1,000 words" and the graphic will lead you down the garden path, (did me). |-I386- $OEM$- $1- pnpdrivers Above: Directory Structure: FOR "OEM" (Adding your own PnP Drivers, e.g., Motherboard, RAID, SCSI, VIDEO, NET, what you want or require). Place in pnpdrivers, you can split the different PnP drivers into respective Folders, but, they must all be in pnpdrivers. The above applies when you are using Software such as: nLite Adding "OEM" (Your extra Software on Operating System CDROM) Software during Setup Installation. There seems to be some confusion as to adding Software during Setup Installation. I think some people (me included) have their brain centred/fixed on the I386, $OEM$ Folders. For an "OEM" (and Unattended) Installation, a second $OEM$ Folder is added to the Folder tree of your Installation. This will often be situated at the very top of main branch. |-I386 |-DISCOVER |-BOOTDISK |-$OEM$- $1-| $$-| $Progs-| Note: The above applies when you are adding Software/Applications, extra PnP drivers, (or empty Folders which will be already in Search Path when you add (at present unknown) PnP drivers at a later stage. $1 resolves to %systemdrive%, $$ resolves to your Windows Folder, %windir%, e.g., "Windows", "Windows XP", "WINNT" $Progs resolves to "Program Files", or whatever you or Setup decides. Note: Which Drive this happens on does not come into the discussion.