Hi All In my messing around with Server 2008 R2 64 bit STD and the Hyper V server role I have discovered that you are entitled to the same OS in VM form. So in essence you can get 2 2008 R2 STD 64 bit servers - 1 host and 1 VM. With today's environmental issues, the current trend towards virtualisation and the lost cost of server hardware I feel this is a real bonus with regards to hardware costs, server maintenance, testing etc. Now server roles such as File / Print / DHCP / DNS / Windows Deployment Services can split and balanced between the host and the VM. And the VMs are portable, you can export your 2008 VM to another server running Hyper V. Pretty useful if your VM is a Windows Deployment Server and you need to go to different company sites to deploy Windows operating systems. Seems pretty cool stuff with a lot of possibilities. Will keep you posted. Regards