you can package the mbean/impl classes in a ..SAR (its similar to an .EAR, check the docs) and either configure it internally with a jboss-service.xml or externally with a "-service.xml" file in the deploy directory. each way has its advantages. i did something similar to this, where the .SAR was deployed with a jboss-service.xml internally, and then i wrapped that with an external mbean to schedule it (using the varia scheduler). if you deploy your jar file in the [lib] dir, its bootstrapped at runtime and cannot be hot deployed/undeployed. which might be preferable. if its deployed as a .SAR, you can deploy/undeploy to your hearts content as long as your unbind/rebind methods are proper. HTH == stanton View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4187555#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...