"thomas.heute(a)jboss.com" wrote : | You could define a preference at the instance level, using portlet-instances.xml OK, I see. My intention is to programmatically create these portlet instances with the core api. | portal.createPage("User1"); | Page p1 = portal.getPage("User1"); | Window w2 = p1.createWindow("Contacts"); | w1.setInstanceRef("PortletInstanceInternalContacts"); Can I set this preference parameter with a method? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4030189#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...