http://developers.de/blogs/damir_dobric/archive/2012/01/16/windows-server-appfabric-v1-1-setup-issue.aspxIf you had previously installed Windows Server AppFabric 1.0 (WSA 1.0) the update to v 1.1 can fail. Before you start the installation of WSA 1.1 be sure that the Task Scheduler does not contain the task with the name “ Consolidator ”. If this task doesenCommunityServer 2008 SP1 (Build: 30619.63)