Int 92 Fn E1  - Da Vinci EMail Dispatcher Interface                        [e]

   AH = E1h
   AL = function
   BX = stack count (number of words to push)
   CX:DX -> stack data (in word-reversed order ready to push)

Return: AX = status (see below)

Note:  preserves BP, DS, SI, DI; other registers may be destroyed

Values for status:
 0001h success
 FF97h "ERS_NOT_AVAILABLE"
 FF99h "ERS_TOO_MANY_NAMES"
 FF9Ah "ERS_BAD_NAME_PASSWORD"
 FFE3h "ERS_NAME_NOT_FOUND"
 FFF8h "ERS_USE_STRING" (call NetGetError to get error string)
 FFFFh "ERS_NO_SUCH_FILE"