http://developers.de/blogs/damir_dobric/archive/2013/08/08/how-to-find-out-which-appfabric-cache-version-is-installed.aspxBefore you start doing anything with AppFabric you should know which version is currently installed. This is important, because version v1.0 and v1.1 are in some features very different. Using Registry: Following picture represents version 1.0. FollowingenCommunityServer 2008 SP1 (Build: 30619.63)