You should not add your own jar files to \jsf-libs. Also, you should not duplicate the jars that are already in \jsf-libs. For a web app, the usual place to put application jars is in your WAR under \WEB-INF\lib. JBoss ships with everything you need to run a JSF application. However, you might need to add jars to your WAR for any component libraries you are using. See these pages for instructions on using JSF with JBoss: http://wiki.jboss.org/wiki/Wiki.jsp?page=JBossFaces http://wiki.jboss.org/wiki/Wiki.jsp?page=JBossWithIntegratedMyFaces The second page has a sample web.xml at the bottom. Stan View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3987373#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...