Microsoft is continuing to invest in desktop virtualization for application compatibility purposes in Windows 7. Virtual PC and MED-V address this need by allowing legacy applications to run in isolated virtual environments. Virtual PC 7 will provide a seamless experience for running Windows XP applications on Windows 7 hosts. It utilizes Hyper-V and Terminal Services technologies for integration and USB support. MED-V offers centralized management of virtual machine images and usage policies across an enterprise. Both solutions help ensure compatibility of existing applications when migrating from Windows XP to Windows 7.