      |
|  Socket   +---------------->+                        +<---------------------+              |               |
|  Serial   |  CommReceive()  +------------------------+  CommTextEchoW()     |  Talker      |               |
|  Pipe     |                                             CommBinaryEcho()    |   Keyboard   |               | Code:Unicode(UTF-8)
|  Plugin   |                 +------------------------+                      |   SendMem    |               |  DDEPut1()
|           +<----------