title: How to tell the Activity type when loading a persisted workflow
body: <p>Question:</p>
  
  <p>Is there an easy way to find out what Activity Type was used to create a workflow? </p>
  
  <p>Background:</p>
  
  <p>I am writing my own <code>WorkflowApplication</code> based Windows Workflow 4 hosting engine and I am having some issues trying to load persisted workflows out of the database.  I am using the <code>WorkflowApplication.Load(Guid)</code> method to start the workflow, but this requires me to already create the <code>WorkflowApplication</code>.  </p>
  
  <p>Looking at the <code>SqlWorkflowInstanceStore</code> databases, I don't see the type name stored anywhere and I don't see an easy to to associate it short of making another table myself just to store that information.</p>