Whether running WS08 Terminal Server running as a guest on Windows Server 2008 R2 Hyper-V is supported and recommended? Yes! this is a supported scenario. Second question; recommendations for any customer planning to run Terminal Server 2008 virtualized? Based on testing using both non-SLAT and SLAT hardware and found that SLAT enabled processors increased the number of sessions by a factor of 1.6x to 2.5x compared to non-SLAT processors. It’s advisable, that customers test virtualized Terminal Server with their specific client usage and utilize SLAT enabled processors given the scale improvement that SLAT provides the Terminal Server workload, said RDS Blog.