Int 21 Fn E3  - Novell Netware - Get Network Serial Number                 [N]

   AH = E3h subfn 12h
   AL = 00h
   BX = CX = DX = 0000h
   DS:SI -> request buffer (see below)
   ES:DI -> reply buffer (see below)

Return: AL = status
       00h successful
Desc:  return the serial number and application number for the software
     installed on the file server

Notes: this function is supported by Advanced NetWare 2.1+
   reportedly, the workstation crashes if AL,BX,CX, and DX are not all
     zero

See Also: AH=E3h/SF=0Ch,AH=E3h/SF=11h

Format of request buffer:
offset  size   description
 00h    WORD   0001h (length of following data)
 02h    BYTE   12h (subfunction "Get Serial Number")

Format of reply buffer:
offset  size   description
 00h    WORD   (call) 0006h (size of following results buffer)
 02h   4 BYTEs (big-endian) NetWare server serial number
 06h   2 BYTEs (big-endian) NetWare application serial number