INT 21 U - LASTBYTE.SYS v1.19 - IOCTL - GET ??? TABLE
        AX = 4402h
        BX = handle for device "LA$TBYTE"
        CX = 0004h
        DS:DX -> DWORD to hold address of 39-byte table of ???
Return: CF set on error
            AX = error code (see AH=59h)
        CF clear if successful
            AX = number of bytes read
Note:   LASTBYTE.SYS is part of "The Last Byte" by Key Software Products