We will deploy JChannelFactory as part of jboss-messaging.sar for deployment under jboss-4, and we will use the default ChannelFactory under JBoss5. I will add /META-INF/multiplexer-stacks.xml under jboss-messaging.sar, to use the exact same location jgroups.sar (forgot the exact name of the package under jboss-5). Under the source tree this will be located under /src/etc/META-INF (this was a perfect location for the testsuite also) Also.. as there is an issue with JGroups and IPV6 (as documented on their WIKI page), I will add -Djava.net.preferIPv4Stack=true on ServerManagement.spawn and every start-rmi-clustering-service, as the new stacks introduced by ChannelFactory and multiplexer-stacks.xml are using IPV6. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3997633#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...