"dlnet" wrote : The jbossweb-tomcat55.sar directory is getting copied from my application on which I am working and I have removed the existing jbossweb.deployer from JBossAS4.2.0. Umm, well, that's just not going to work. Stick with the jboss-web.deployer and if you've somehow customized the jbossweb-tomcat55.sar in your old AS version, port the changes. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4112935#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...