The stack trace from your local JBoss Portal install would be more useful for us. I don't have easy access to a Windows system so I cannot test the MSDN client right now, however, if you receive an OperationFailedFault, it means that something went wrong on the Producer and the relevant stack trace on the server would cast some light as to what is happening. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4011343#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...