title: System.Expression.Interactions.dll does not include CallMethodAction
body: <p>I have recently just installed <code>Expression Blend 4</code> Ultimate to run along side my Visual Studio 2010. I have included the reference for System.Expression.Interactions.dll but it does not include the CallMethodAction within the reference. Does anyone know why? I have been searching all night and have not come across any good sites that explain why. All sites I have read and been to just say that the reference is needed to use the callMethodAction. Any help would be appreciated</p>