question 1) -- 1.4.3 is specific for jboss AS 5, usually we don't provide a download. But you can have this version at svn: https://svn.jboss.org/repos/messaging/tags/JBossMessaging_1_4_3_GA question 2) -- 1.4.3.GA has been tested specifically against remoting 2.5 in order to be released for AS5. If you are using 1.4.3.GA, stay AS5 and remoting 2.5. It's not guaranteed that 1.4.3.GA work with 2.2.x remoting. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4229012#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...