Workflow State Machine support for .NET Framework 4http://developers.de/blogs/damir_dobric/archive/2011/04/11/workflow-state-machine-support-for-net-framework-4.aspxState machine functionality in WF 4 will be a part of the upcoming Multi-Targeting Pack for Microsoft .NET Framework 4 Platform Update 1 ( KB2495638 ). To create State machine workflow applications in Visual Studio 2010, the MT Pack for .NET FrameworkenCommunityServer 2008 SP1 (Build: 30619.63)