You can run the community version of JBoss AS (other any of the other JBoss middleware products) without having to pay any support or licensing costs. Of course, you are then on you own if a problem comes up - you can post such a problem in these forums but there is no guarantee of a response. You can also purchase a support contract from Red Hat or one of its partners. That contract provides guaranteed resolution times for problems that you encounter, and enables you to download the enterprise version of various JBoss middlewares - those versions are typically better tested, are more stable, and periodically patches and service packs are provided to fix problems. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4232541#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...