http://blogs.technet.com/b/chitpro-en/archive/2009/06/16/windows-server-2008-product-activation-in-a-virtual-environment.aspxOEM-, ROK- and FPP Licenses Windows Server 2008 OEM-, ROK- and FPP Products are supplied with 2 license keys, one Product Key and a Virtual Key. Importantly, you must use the Product Key for the Physical System (Parent Partition) and the Virtual Key foren-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)