service: DXKeeper
topic:   DDEServer
Item:    DDECommand
Message: Character string beginning with 001log followed by a valid ADIF
record

Example message
===============
001log<CALL:5>VK9NS<QSO_DATE:8>20070701<TIME_ON:6>194452<TIME_OFF:6>194510<F
REQ:2>14.085<BAND:3>20M<MODE:4>RTTY<RST_SENT:3>599<RST_RCVD:3>599<EOR>

A message that lets you send the name of a file whose contents
should be interpreted as ADIF to import, e.g.

001import"C:\DM780\TEMPORARY_DXKEEPER_ADIF_FILE.ADI"