INT 21 - DOS 4.x + Microsoft Networks - GET REDIRECTION LIST EXTENDED ENTRY
        AX = 5F05h
        BX = redirection list index
        DS:SI -> buffer for ASCIZ source device name
        ES:DI -> buffer for destination ASCIZ network path
Return: CF set on error
            AX = error code (see AH=59h)
        CF clear if successful
            BH = device status flag (bit 0 clear if valid)
            BL = device type (03h if printer, 04h if drive)
            CX = stored parameter value (user data)
            BP = NETBIOS local session number
            DS:SI buffer filled
            ES:DI buffer filled
Notes:  the local session number allows sharing the redirector's session number
        if an error is caused on the NETBIOS LSN, the redirector may be unable
          to correctly recover from errors
        calls INT 2F/AX=111Eh with AX on top of the stack
SeeAlso: INT 2F/AX=111Eh