yes, you were right about the EJBDeployer! After googling for a while, i found that a patch jboss-EJB-3.0_RC9_Patch_1 needs to be installed for the JBoss 4.0.5 GA to enable ejb3 deployment. i ran the ant command(its found in the jboss-EJB-3.0_RC9_Patch_1.zip), the EJB3Deployer and other associated files got installed. now the ejbs are deployed by the EJB3Deployer and everythings working very well. jboss-EJB-3.0_RC9_Patch_1 is only compatible with JBoss 4.0.5 GA. different versions of the patch are available for other JBoss versions. thanks!! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4101153#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...