If you are deploying JBM, you should remove the old JBoss MQ install unless you have a specific reason for keeping it. I believe (not positive) that JBM has install scripts to help you do that. That said, I doubt your problem is a service name conflict. Your message is for jboss.messaging:service=PersistenceManager. The JBossMQ service is jboss.mq:service=PersistenceManager. Suggest you post on the Messaging forums where the folks more familiar with the details of the messaging installation live. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4051766#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...