Hi To add window to existing portal use this example Here iam adding child window to the parent portlet For this u hav to configure 3 xml files Portlet.xml Portletinstance.xml Defaultobject.xml | portlet.xml | .................................... | <portlet> | <portlet id="child"> | <portlet-name>childPortlet</portlet-name> | <portlet-class> | com.counterpane.dashboard.portal.controller.jspportlet.JspPortlet | </portlet-class> | <init-param> | <name>default-view</name> | <value>/jsf/child.jsp</value> | </init-param> | <portlet-preferences> | <preference> | <name>contentPage</name> | <value>/jsf/child.jsp</value> | </preference> | </portlet-preferences> | <expiration-cache>0</expiration-cache> | <supports> | <mime-type>text/html</mime-type> | </supports> | <portlet-info> | <title>child</title> | </portlet-info> | </portlet> | portlet-instance.xml | ........................................ | <deployment> | <instance> | <instance-id>childPortletInstance</instance-id> | <portlet-ref>childPortlet</portlet-ref> | </instance> | </deployment> | defaultobject.xml | ....................................... | <page> | <page-name>parent</page-name> | <properties/> | <window> | <window-name>NavigationPortletWindow</window-name> | <instance-ref>NavigationPortletInstance</instance-ref> | <region>navigation</region> | <height>0</height> | <properties> | <property> | <name>theme.windowRendererId</name> | <value>emptyRenderer</value> | </property> | <property> | <name>theme.decorationRendererId</name> | <value>emptyRenderer</value> | </property> | <property> | <name>theme.portletRendererId</name> | <value>emptyRenderer</value> | </property> | </properties> | </window> | <window> | <window-name>child</window-name> | <instance-ref>childPortletInstance</instance-ref> | <region>choose any reion in ur project</region> | <height>0</height> | </window> | </page> Note:in the tag choose any region in ur project View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4100659#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...