jboss-4.0.4.GA-Patch1-installer.jar installs JBoss AS 4.0.4GA. It also includes EJB3.0 CR7. You should be able to run EJB3 against 4.0.4 zip distribution with no problems however it requires a few manual steps to get it running. That's why installer is the quickest way to install AS and EJB3. You should select "ejb3" profile. If you decide to use installer, pick up the latest drop at http://labs.jboss.com/portal/jemsinstaller/downloads View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3958826#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...