Thanks for the reply Bacd, Alas, yes I tried the normal command box to test it, I get the same thing. Few seconds of activity, then nought. The ISS was created using the -r (or /r) and is in the same dir as the exe. Have tried it with and without the -f1 stuff. I haven't tried putting it in the $OEM$ as yet - mainly because I still can't even get it to work from the command line, even off HDD, and partly because I REALLY want it to install from the CD. Appreciate the suggestions though... I'll keep toying with runonce and screaming at my PC, hopefully one of those actions will get it working. If you think/hear of anything else, would appreciate it if you could post in another reply. Cheers, Si.