I don't know how that's on the JEMS installer. I believe the JEMS installer will only install the JBossMQ? I remember we talking about possibly having the installer replacing JBossMessaging automatically for us, but I don't think that ever happened. If it did actually, you should be careful as it will be probably an old version. So.. I don't know if you will have the alternative files on the JEMS installer, but you will for sure find them on the latest downloads: http://www.jboss.org/jbossmessaging/downloads/ View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4144349#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...