Dear Julien, I have managed to get my code running as you suggested. I changed the jboss-service.xml as needed, configured the portal servlet to listen under /ajax/*, created an AjaxController and an AjaxPortletRenderer. Here is one small snippet of the jboss-service.xml that I have a question for: | ... | <mbean | code="org.jboss.portal.server.impl.invocation.JBossInterceptorStackFactory" | name="portal:service=InterceptorStackFactory,type=Ajax" | xmbean-dd="" | xmbean-code="org.jboss.portal.jems.as.system.JBossServiceModelMBean"> | <xmbean/> | <depends-list optional-attribute-name="InterceptorNames"> | <depends-list-element>portal:service=Interceptor,type=Server,name=Transaction</depends-list-element> | <depends-list-element>portal:service=Interceptor,type=Server,name=SessionInvalidator</depends-list-element> | <depends-list-element>portal:service=Interceptor,type=Server,name=User</depends-list-element> | <depends-list-element>portal:service=Interceptor,type=Server,name=Locale</depends-list-element> | <depends-list-element>portal:service=Interceptor,type=Server,name=ContentType</depends-list-element> | <depends-list-element>portal:service=Interceptor,type=Server,name=AjaxController</depends-list-element> | </depends-list> | </mbean> | ... | My question now is: Since I mainly just use another Controller and another Renderer (the rest is the same as in the regular stack), is it possible to define a conditional "depends-list-element" or do I always have to define my own complete action, command and render stack? I am thinking of something like | if (ajax) { | <depends-list-element>portal:service=Interceptor,type=Server,name=AjaxController</depends-list-element> | </depends-list> | } else { | <depends-list-element>portal:service=Interceptor,type=Server,name=Controller</depends-list-element> | </depends-list> | } View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3969987#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...