Int 21 Fn E1  - Novell Netware - Message Services - Send Personal Message  [N]

   AH = E1h subfn 04h
   DS:SI -> request buffer (see below)
   ES:DI -> reply buffer (see below)

Return: AL = status
       00h successful
       FEh I/O error or out of dynamic workspace

Notes: this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
   message pipes use CPU time on the file server; IPX, SPX, or NetBIOS
     connections should be used for peer-to-peer communications as these
     protocols do not use file server time

See Also: AH=E1h/SF=00h,AH=E1h/SF=05h,AH=E1h/SF=06h,AH=E1h/SF=08h

Format of request buffer:
Offset Size    Description
 00h   WORD    length of following data (max E5h)
 02h   BYTE    04h (subfunction "Send Personal Message")
 03h   BYTE    number of connections (01h-64h)
 04h  N BYTEs  list of connections to receive broadcast message
   BYTE    length of message (01h-7Eh)
      N BYTEs  message (no control characters or characters > 7Eh)

Format of reply buffer:
Offset Size    Description
 00h   WORD    (call) size of following results buffer (max 65h)
 02h   BYTE    number of connections
 03h  N BYTEs  list of per-connection results
       00h successful
       FCh message rejected because queue is full (contains 6 msgs)
       FDh incomplete pipe
       FFh failed