Thanks Ales. But if there is no structure class, how do I create a meta data attachment? After the structure "determineStructure" returns true, how MC decides to call which deployer is responsible for? Does it look for the attached meta data class that is set on the Deployer constructor using setInput(clazz). Deployer will read the service list from the "META-INF" folder of the "msar" and and do some JMX related stuff whenever a user put "msar" archives to deploy directory. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4237800#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...