Class TDde
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 DATA
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 nService        The service on which establish the conection.
 nTopic          The topic on which establish the conection.
 nItem           The item on which establish the conection.
 oWndServer      Container TWindow object of the TDDE object.


 METHODS
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 New             Constructor from source code
 Activate        To initiate a conversation with server applications
                 responding to the specified application and topic names.
 Execute         To send a string to the server to be processed as a
                 series of commands.
 DeActivate      Virtual, not implemented yet.
 Release         Virtual, not implemented yet.