The latest module which we are planning to work upon includes HABDDE. This is Dynamic Data Exchange (DDE) protocol in a Habitat of nodes. Sound Interesting but slightly oselete technology as now COM $ OLE are in place.
Microsoft Windows provides several methods for transferring data between applications. One method is to use the Dynamic Data Exchange (DDE) protocol. DDE is an interprocess communication (IPC) system and enables two running applications to share the same data. Although the DDE mechanism is still used by many applications, it is being replaced by OLE, which provides greater control over shared data. In DDE, the application, topic and item are not case-sensitive.
All the functions and messages that simplify the task of adding DDE capability to an application are present in Dynamic Data Exchange Management Library (DDEML). It also provides a facility for managing the strings and data that DDE applications share. It also looks after compatibility issues among DDE applications by forcing them to implement the DDE protocol in a consistent manner.
New technologies like COM offer features DDE doesn't have, there are also issues with regard to configuration that can make COM more difficult to use than DDE. However the technique is, however, still in use, particularly for distribution of large data.
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