I tried to repackage a product using AdminStudio's 5.0 and had no problems but whenI try to package this under vmware, I take the first snapshot and then the system just gives up without any error message or log. The VMware machine has XP image on it.
Probably this is due to a network timeout. Before making your "after snapshot", browse the mapped drive so that activity is registered. I've experienced similar problems with XP SP1 and VMWare in addition to isrepackager and lengthy analysis of captured data.