http://blogs.technet.com/markga/archive/2008/08/26/is-there-a-way-to-speed-up-the-exchange-management-shell-launch.aspxHave you noticed it takes quite a long time to open up the Exchange command shell? I timed it and it takes anywhere from 20 to 30 seconds to launch. I found a way to knock this down to 2-3 seconds. This script updates the GAC with some of the Exchangeen-USCommunityServer 2.1 SP1 (Build: 61025.2)