INT 21 - Novell NetWare - FILE SERVER - CLEAR CONNECTION NUMBER
        AH = E3h subfn D2h
        DS:SI -> request buffer (see below)
        ES:DI -> reply buffer (see below)
Return: AL = status
            00h successful
            C6h no console rights
Desc:   close the open files and release all file locks for a connection,
          abort transactions if a TTS file server, and detach from the file
          server
Notes:  this function is supported by Advanced NetWare 2.1+
        the caller must have SUPERVISOR privileges
SeeAlso: AH=E3h/SF=C9h,AH=E3h/SF=D1h

Format of request buffer:
Offset  Size    Description
 00h    WORD    0002h (length of following data)
 02h    BYTE    D2h (subfunction "Clear Connection Number")
 03h    BYTE    connection number

Format of reply buffer:
Offset  Size    Description
 00h    WORD    (call) 0000h (no results returned)

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