I have a web application created that uses WFSO to communicate with the Workflow Server to perform various tasks including retrieving workflows and workflow permissions for the current user.  I have Windows Authentication and Impersonation set up in the IIS virtual directory and everything is working correctly if Workflow and the integration are on the same server.  When the integration and Workflow are on separate servers, I am getting an error saying "An error occurred communicating with the workflow server. View error log for more details. [0604-WFSO0]".  This sounds like a Kerberos issue to me, and I tried following the instructions for configuring Kerberos for Web Access and the Laserfiche Server here and here, substituting my integration for Web Access and Workflow for the Laserfiche Server.  I was unable to get this to work.  Are there instructions available for configuring Kerberos with Workflow or does anyone have any tips?