All subscribers of the Microsoft Desktop Optimization Pack (MDOP) can register to download the update from Microsoft Connect and get ahead on their Windows 7 planning right now.   Through MDOP, our goal is to continuously offer technology and updates to our enterprise customers.  When Windows 7 releases, we are committed to supporting the final product within 90 days of general availability.  App-V 4.5 CU1 also contains a small number of improvements such as instant access or removal of applications assigned to end users.