Well, we just followed the walkthrough "Build a Configuration Set" from the WAIK-User Guide (Custumization Walkthroughs). And if you do that, you will have a Distibution Share including an $OEM$ Folder. So it should work. And my distribution share is not containing any folders which would not be supported by Vista. I've checked that User Guide. A Configuration Set is at least an answering file plus a Distribution Share. And part of the Distribution Share is an $OEM$-Folder. The benefit of a Configuration Set is that it is smaller than a usual Distribution Share. So it supposed to be compressed anyway. All these informations are from the WAIK-User Guide. I know that everything is still BETA. So it will may not work yet. Thanks, Martin Update: Could not get the Configuration Set unattended Installation to work so far...