When you install Aspen Graphics, the AGDDELNK.DLL file is written into your \WINDOWS directory. This file controls the Aspen DDE Link Generator: The Aspen DDE Link Generator is a DLL, or Dynamic Link Library. It will work correctly only if the \WINDOWS directory is in the DOS path. The Aspen DDE Link Generator enables you to build links. A link consists of a character string in the following format: =<service>|<topic>!<item> i.e., =QMASTER|QUOTE!IBM.LAST With the Aspen DDE Link Generator, knowing the syntax of a link is not necessary. Instead, all you need to do is fill in the fields of the Aspen DDE Link Generator, and Aspen does the work for you. The following section explains how to use the Link Generator. The Link Generator enables you to create four types of links: The Link Generator is arranged in a tabbed dialog box, as shown in the figure. The tabs relate to the four topics. To select a tab, or topic, position the mouse pointer on the tab and click the left mouse key.Creating Links