INT 21 - Novell NetWare - WORKSTATION - GET DRIVE CONNECTION ID
        AX = EF02h
Return: ES:SI -> network shell's 32-byte drive conection ID table
Notes:  this function is supported by Advanced NetWare 1.0+
        each byte in the connection ID table corresponds to a drive and
          contains either the connection ID (1-8) of the server for that drive
          or 00h if the drive is not mapped to a file server
SeeAlso: AX=EF03h,AX=F002h