In 2008 R2 VDI with Windows 7 guest VMs, I used Microsoft's PowerShell script to configure the guests for VDI: http://gallery.technet.microsoft.com/scriptcenter/bd2e02d0-efe7-4f89-84e5-7ad70f9a7bf0
Is there anything like this that needs to be done to a Windows 7 VM (or Windows 8 VM for that matter) before using it as a virtual desktop in Server 2012 VDI?