Windows Server 2008 is designed from the ground up to support virtualization. This means that you have the opportunity to change the way you manage servers and services. With the Windows Server 2008 hypervisor, Hyper-V, there is little difference between a machine running physically on a system and a machine running in a virtual instance. That’s because the hypervisor does the same thing as a physical installation would by exposing hardware to VMs. The real difference between a physical installation and a VM running on the hypervisor is access to system resources.