http://blogs.msdn.com/jpricket/archive/2008/04/23/wf-creating-an-activity-base-class.aspx(or Designing Your Workflow Activity Class Hierarchy) One of the questions that we've had to consider when designing our Workflow Activity Class Hierarchy is whether it is valuable to have our own Activity base class (derived from Activity and inheriteden-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/jpricket/archive/2008/04/23/wf-creating-an-activity-base-class.aspx#8419660Wed, 23 Apr 2008 22:07:51 GMT91d46819-8472-40ad-a661-2c78acb4018c:8419660Microsoft news and tips &raquo; WF - Creating an Activity Base Class<p>PingBack from <a rel="nofollow" target="_new" href="http://microsoftnews.askpcdoc.com/?p=4063">http://microsoftnews.askpcdoc.com/?p=4063</a></p>