@Yzöwl: Perhaps I could have been clearer, but thanks for helping anyway! Didn't realize I had to be so literal with the 'start' command, but it works now! Thanks much! @Martin H: Doesn't appear to be enough of us Win2K/FDV'ers here... I already tried the approach you suggested, but the path for [sourceDisksNames] is relative to the script location. (Took me a while to figure that part out...) My inf is getting copied to %SystemRoot%\inf (accomplished by TXTSETUP.SIF with entry "runoncex.inf = 1,,,,,,,20,0,0") before it actually installs, so it'll look there for cdrom_ip.5. It won't find it, but it'll assume that %1% = %SystemRoot%\inf\SOFTWARE. Which would cause all kinds of fun... Actually, now that I look at it again, I don't think I have to copy it to the inf's folder. I'm referencing Gosh's Guide, and I think I can point it to the CD correctly. More research required!