AppFabric and .NET Framework dependencieshttp://developers.de/blogs/damir_dobric/archive/2010/04/29/appfabric-and-net-framework-dependencies.aspxRequirements for the Windows Server AppFabric features are shown in the following table. An “X” indicates that the feature depends on specified .NET Framework version. Feature .NET Framework 4 .NET Framework 3.5 SP1 Hosting Services * X   HostingenCommunityServer 2008 SP1 (Build: 30619.63)