JbossAS 4.0.5GA, JBoss Portal 2.4.1GA - bundle, JDK 1.6, Hypersonic database, OS Platform: WinXP Pro JBoss Reference Guide has an example of InterPortlet Communication (helloworldipcportlet.sar). It works in hot deployment, but Portal server doesn't start after shutdown. I seems this problem was described in the forum: http://jboss.org/index.html?module=bb&op=viewtopic&p=3990790#3990790, I installed the latest version of Portal Server, i.e. JBoss Portal 2.6A to avoid the problem. There is the same result. Is solution exist? If not, could you suggest working examlpe for two portlets: the navigation portlet and content portlet. The idea is following: click on any links in Navigation portlet displays different content in the second portlet. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4019614#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...