I've tried to deploy jbossweb-tomcat55.sar (taken from jboss-4.0.3SP1) into jboss-3.2.8.SP1 instead of the original jbossweb-tomcat50.sar but it seems, that further configuration steps are required. Message while staring up jboss is: 10:35:14,359 ERROR (main) [MainDeployer] could not create deployment: file:/J:/jboss-3.2.8.SP1_sandbox/server/default/deploy/jbossweb-tomcat55.sar/ | org.jboss.deployment.DeploymentException: create operation failed for package file:/J:/jboss-3.2.8.SP1_sandbox/server/default/deploy/jbossweb-tomcat55.sar/; - nested throwable: (org.jboss.deployment.DeploymentException: - nested throwable: (java.lang.reflect.UndeclaredThrowableException)) Just to deploy the different sar seems not to be enough. What else do I have to change? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4019267#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...