Try this… Create a new ASP.NET Web Application (MVC or Web Forms).  Then add a new a WCF Workflow Service to your web project. Now try to add a service reference to your workflow service.  It fails with an error. There was an error downloading...

In my previous posts I’ve written about my experiences with WorkflowServices and Silverlight. Troubleshooting Workflow Services / Silverlight Using Workflow Services and Silverlight Together WorkflowServices, CanCreateInstance and Silverlight Problem...