Int 21 Fn E1  - Novell Netware - Message Services - Enable/disable Broadc  [N]

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

Return: AL = error code

Note:  these functions are supported by NetWare 4.0+ but are not listed in
     _NetWare_System_Calls--DOS_; they may be obsolete

See Also: AH=E1h/SF=00h,AH=E1h/SF=04h,AH=E1h/SF=09h

Format of request buffer:
Offset Size    Description
 00h   WORD    length of following data (max 9Eh)
 02h   BYTE    subfunction
       02h disable station broadcasts
       03h enable station broadcasts
 03h   ???

Format of reply buffer:
Offset Size    Description
 00h   WORD    (call) size of following results buffer
 02h   ???