@bondsbw: I asked the question in here. There's a post by Larry Larson in there that might be useful, otherwise I suggest we wait for a "proper" Microsoft response before calling it quits and deciding it can't be done.

http://channel9.msdn.com/Shows/The-Defrag-Show/Defrag-High-CPU-Usage-Audio-Interrupt-Sharing-Printers-and-Files