The format of URLs has been improved toward that direction in 2.4. The format or an action or render URL is like /portal/portal/default/mypage/mywindow?a=b&c=d&... Where /portal/portal is a prefix that depends on your settings, /default/mypage/mywindow is the path to the portlet window targetted by the request and the list of parameters contains either render parameters or action parameters. A special parameter is also inserted in the list of parameters in order to make the portal distinguish between action and render. We also can render page using an URL that points to a page. However any parameter to a page is discarded and never propagated to any portlet. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3962858#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...