INT 7A - Novell NetWare - IPX Driver - DISCONNECT FROM TARGET
        BX = 000Bh
        ES:SI -> internetwork address (see below)
Notes:  this function permits the network software on the remote machine to
          remove any virtual connection with the calling machine
        only use in point-to-point networks
        should never be called from within an Event Service Routine
        this function is supported by Advanced NetWare 1.02+
SeeAlso: BX=0002h,BX=0009h

Format of internetwork address:
Offset  Size    Description
 00h  4 BYTEs   (big-endian) destination network
 04h  6 BYTEs   (big-endian) destination node
 0Ah  2 BYTEs   (big-endian) destination socket

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