http://blogs.technet.com/dhitchen/archive/2007/11/07/softgrid-client-is-upgrade-from-4-2-to-4-5-supported.aspxYes, When v4.5 is released we will support the client upgrade from 4.2 and respect the settings. [update 8th Nov] Ok, so what about your sequenced applications, will they work? Yes, we expect applications sequenced in 4.2 to work just fine on the newen-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.technet.com/dhitchen/archive/2007/11/07/softgrid-client-is-upgrade-from-4-2-to-4-5-supported.aspx#3137112Thu, 16 Oct 2008 10:23:08 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:3137112Funda<p>Although upgrade softgrid client from 4.2 to 4.5 completes successfully, launching applications &nbsp;fails with error code 42200F-0FA0EA12-00006002 (unexpected error was encountered). I also found that softgrid client service does not start. Are there known issues upgrading to 4.5 version regarding with this problem?</p>