In your case the code is ignored because the xml descriptor is parsed in a standard way (i.e. ignoring comments). BUT: You can do it via code. In the portlet's doView() etc. you can inject any HTML you want. Look for the ContentRewritePortlet in the portlet examples (in core). | response.setProperty("HEADER_CONTENT", "<your string here>"); | You can even wsrp rewrite the content to get namespacing: | res.setProperty("WSRP_REWRITE", "true"); | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3977239#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...