[oXygen-user] Preventing oXygen XML Author to start a new "instance"

Hi group When I have oXygen XML Author open and double-click an xml file in Windows Explorer, a new "instance" of oXygen XML Author is started in which this file is opened. Isn't there a way to prevent this, so that the xml file is opened in the instance which is currently running? Thanks -- Yves Barbion www.scripto.nu