Hi I have tried my hand at trying to support JMS with tomcat 4. I have seen various links also but am still confused as to how Tomcat 4 works with JMS (if it supports). Can u plz let me know if tomcat 4 supports JMS or not. I cant afford to use another server (for ex i read abt openJMS which requires use fo another server) I want tomcat 4 to look up for JMS topic Connection Factory. I read abt adding the following in my web.xml but it did not solve my purpose. jms/Topic javax.jms.Topic jms/TopicConnectionFactory javax.jms.TopicConnectionFactory Container    More>>