I got a simple routine that starts up the expressviewer being called from a menu. It works other than the Viewer is not the active window, (sits in the taskbar) AutoCAD stays as the main window. Anyone know a way to set focus. Vlisp and using Active.app visible = True maybe? (defun showSpec (unit / page ) (setq page (strcat "F://web_http//specbook//" unit ".dwf")) (startapp "ExpressViewer.exe" page) ) Murph