Int 21 Fn 4402  U - Lastbyte.sys V1.19 - Ioctl - Get ??? Table             [m]

   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 #1366 at AH=59h/BX=0000h)
   CF clear if successful
       AX = number of bytes read
Program: LASTBYTE.SYS is part of the shareware "The Last Byte" memory
     management package by Key Software Products

See Also: AX=4402h"HIGHUMM"