I just used this program at the weekend, it is an amazing utility. The ability to add the $OEM directory and the winnt.sif is great. I have 2 installs, XP home and XP Pro, if when I build the distribution, if I use the same directory am I correct in saying when I create the ISO I will get a boot disc that will offer XP Home & XP Pro and would probably fit on a single CD? (They currently do) Before using powerpacker if I added/updated a program I had to do it in 2 places now it is only in 1. Thanks Niall