Hello, 1. When JBoss installed using unzip the file jboss-4.0.4.GA.zip, all the three server configurations (minimal, default, all) will be installed except ejb3 configuration. 2. When JBoss installed using installer.jar file, the user can select the specific server of his choice. At a time, it enables only one server configuration to install. It also includes ejb3 configuration. anonymous wrote : what does the 'GA' in the jboss-4.0.4-GA represent? GA means "General Availability". View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3972178#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...