Some time ago, my friend Andrés and me had worked in a messaging system based on WSE 2. For this project Andrés had to develop the protocol WS-ReliableMessaging. Parts of that implementation was upload to the Plumbwork project, but it was not totally functional and it doesn’t contain any example. Today I have upgraded the code with the last fixes and improvements that we have had incorporated these months. It also contains a small example. Download it from here or from Plumbwork.