Close, but no cigar. * "ant distro" does not work because there is no distro target in build.xml. * The util/release-admin.xml file in the resulting zip file is still 4.2.x specific - it doesn't copy "deployers", it fails when it cannot find the old 'jms' directory, the contents of messaging.sar do not match the contents of the server/default/deploy/messaging directory, it copies the messaging.jar to server/messaging/lib instead of common/lib. Which brings up another interesting point - for the release-admin.xml file to be fully 5.0.0.GA-compliant, it has to upgrade every configuration because once common/lib/messaging.jar has been replaced all configurations are now running Messaging 4.2.2. I was sure that I built it wrong so I did it twice, double-checking that I set the property correctly. Same result. Conclusion: upgrading JBoss AS 5.0.0.GA to use JBoss Messaging 4.2.2.GA is not easy, I still don't have it working. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4207433#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...