If you compare the target layouts of the new and old installer, you'd see that the new one creates something completely different: New installer: | Bonanova:jboss-5.0.0.GA hbraun$ find . -name "jbpm*.jar" | ./server/default/deploy/jbpm/jbpm-enterprise.jar | ./server/default/deploy/jbpm/jbpm-service.sar/jbpm-jboss5.jar | ./server/default/deployers/jbpm.deployer/jbpm-jboss5.jar | ./server/default/lib/jbpm.jar | Old installer: | Bonanova:jboss-5.0.0.GA hbraun$ find . -name "jbpm*.jar" | ./server/default/deploy/jbpm/jbpm-enterprise.jar | ./server/default/deploy/jbpm/jbpm-service.sar/jbpm-console-integration.jar | ./server/default/deploy/jbpm/jbpm-service.sar/jbpm-jpdl.jar | ./server/default/deploy/jbpm/jbpm-service.sar/jbpm-pvm.jar | ./server/default/deployers/jbpm.deployer/jbpm-api.jar | ./server/default/deployers/jbpm.deployer/jbpm-jboss5.jar | ./server/default/deployers/jbpm.deployer/jbpm-log.jar | ./server/default/deployers/jbpm.deployer/jbpm-spi.jar | View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4227292#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...