I don't know about the demo but I was able to get DWR 2 and 3 running in a portlet. Assuming the dwr definition is packaged in your portlet (called 'myPortlet') First, go to /myPortlet/dwr/ and verify the debug pages display and the remote methods and DTOs look correct. Then in my portlet's JSP I added this: | <script src="${pageContext.request.contextPath}/dwr/interface/MyRemote.js" | type="text/javascript"></script> | <script src="${pageContext.request.contextPath}/dwr/engine.js" | type="text/javascript"></script> | and I can call the "MyRemote" methods just as if it were a WAR. Don't forget you need the servlet definition in your web.xml. In my case I used the DwrSpringServlet so I didn't have a dwr.xml, just a bean definition. Also recommend using FireFox + FireBug extension to debug any client-side problems. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4139047#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...