Please have a look at this wiki which should get you started on this topic: http://wiki.jboss.org/wiki/Wiki.jsp?page=DeployJbpm3.2WebAppUnderJBoss4.2.x Basically, there is an ant task to create a war that runs on JBoss 4.2 when you check out the sources from cvs. If you don't want to to a manual build from the sources, the wiki also outlines which jar's need to be replaced from the war which is contained in the binary bundle. Let us know if you run into problems. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4127272#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...