I am installing VMWare workstation 6.0.3 on my Windows Vista SP1 media center pc tonight. I ran into an interesting issue. With any of the virtual network adapters enabled, the Xbox 360 media center extenders in the house could not connect to the server. Right now, I have disabled the default virtual nics VMNet1 and VMNet8. All extenders can see the server once again and access media center. I am going to see if I can forge ahead with bridging to a guest OS directly through VMNet0 only.