http://blogs.technet.com/b/dhitchen/archive/2007/11/12/microsoft-application-virtualization-4-5-beta.aspxI don't normally advertise what's [hopefully] already known, but, 4.5 is a big step forward, and not just in the name change :) http://blogs.technet.com/smsandmom/archive/2007/11/12/microsoft-application-virtualization-4-5-is-open-for-public-beta.aspxen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)