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DDE is a form of inter-process Windows communication that uses shared memory to exchange data between applications. Applications can use DDE DDE was originally called Dynamic Data Linking, or DDL. It is aMicrosoft Windows 3 hotlink protocol that allows application programs to communicate using a client-server model. Whenever the server (or "publisher") modifies part of a document which is being shared via DDE, one or more clients ("subscribers") are informed and include the modification in the copy of the data on which they are working. for one-time data transfers, for ongoing exchanges, and for updating of data. A typical DDE conversation works as follows.
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