| Start a DDE conversation: | DDEInitiate() |
| Send a DDE command: | DDEExecute |
| Send a value via DDE: | DDEPoke |
| Retrieve a value via DDE: | DDERequest$() |
| Close a DDE conversation: | DDETerminate, DDETerminateAll |
| Respond to a request: | RemoteMsgHandler, RemoteQueryHandler(), CommandInfo(CMD_INFO_MSG) |