Hi wolfgang, Thanks for your help. As I use "jmx-console", it is not easy to find that "MainDeployer". Also not every web application has this service. Click on "jboss.system" on the left menu, there is a "service=MainDeployer" on the right menu. When I click on the url of "service=MainDeployer", there is several "stop", "deploy", "undeploy", ... with "invoke" button. I have no idea which "stop" will stop which web application. Really confuse. Finally, I think "jmx-console" is not a user-friend GUI at all. Also, it cannot help me to do manage the JBoss As or web application. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4216429#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...