Another question - I'm assuming that the EJB2.1 clients will NOT need the jboss-ejb3-client.jar (that would kind of defeat the purpose). When I deploy the annotated bean and try to look it up, I keep getting the following exception: java.lang.ClassNotFoundException: org.jboss.ejb3.stateless.StatelessRemoteProxy (no security manager: RMI class loader disabled) Obviously my client would not have this class, not being EJB3 enabled. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3986639#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...