FYI - You'll probably have better luck at an answer if you post to the EJB3 User's Forum: http://www.jboss.org/index.html?module=bb&op=viewforum&f=221 Also, we'll need to see the relevant code of com.dooris.util.hibernate.EJBUtil that's throwing the error. Looks like you're attempting a lookup on "BaseSession" in JNDI, whereas the proxy will be located (by default) at "[packagingSpecificPrefix]/BaseSession/remote". Check the location in JNDI to confirm: http://jboss.org/wiki/Wiki.jsp?page=DisplayTheJDNITreeWithTheJMXConsole S, ALR View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3974633#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...