I answered previously but here again ;) JBoss AS 4.2.0 is the recommended AS (I know, we bundled with 4.0.5 but that was a small mistake but is consistent with the RCs version of JBoss Portal). That said: - JBoss Forums runs out of the box on 4.0.5 only - WSRP requires a WS upgrade if you are running on 4.0.5, it will work out of the box with 4.2.0 - You should know that JBoss AS 4.0.5 ships myFaces implementation of JSF while JBoss 4.2.0 ships the Sun RI implementation - JBoss AS 4.2 has EJB3 included View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4061834#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...