Hi all, I could solve my problems. Originally it seemed to be just one problem but infact there was another onbe coming up after solving the first one (Message "No valid Context.Provider_Url found". Here is what I came up with: First problem was that NamingAliases are not working when you try to alias a remote object. Therefore I skipped the alias. We came up with another solution. As stated between the lines I do not think the problem with the NamingAlias has anything to do with Tibco. It just doesn't work when a remote lookup is involved. The next problem I came across was connected to the class JBossAdapter provided by Tibco. It had some problems setting up the initial context. Instead of using this class I wrote my own Adapter taking care of the context setup. Now my MDB was able to retreive messages and all is running fine. Regards Christoph View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3976030#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...