Posted 20 August 2009 - 03:01 PM
The lack of a response generally would mean no one knows (yet). If you're really anxious, ask Microsoft. Otherwise, figure it out for yourself and post it here to help others.
A simple fix I can think of would be to have the command above run via a FirstLogonCommands script in the oobeSystem settings pass in your unattend, but if you want setup itself to do it via an edited .dll, you may be out of luck if you can't edit it.