Hi, I have also discovered the earlier mentioned error when trying to user the virtual-hosts feature in web-site.xml.. Orion server throws a nullpointerexception durning startup when any virtual-hosts atttribute is set to some name.. It seems like <jsp:param> doesn't really work in the way the JSP spec 1.1 want it to.. Whenever you use a jsp:param in a jsp:include or jsp:forward all other request parameters are lost.. Only the one mentioned in the param should be overridden! /Jonas