For .NET Open Clients, the supported AppServer operating modes are the session-managed modes of state-aware, state-reset, and stateless, and the session-free mode, state-free. For more information, see the information on session models in the chapter on generating proxies and Web service definitions in OpenEdge Development: Open Client Introduction and Programming.
To access a session-free AppServer, you must set the proxy property
PROGRESS.Session.SessionModel to 1. For more information, see
AccessingProxy Properties.