Int 13 Fn 34  U - Quickcache Ii V4.20 - Sector Locking                     [c]

   AH = 34h
   AL = function
       00h end sector locking/unlocking
       01h lock all accessed sectors into cache
       02h unlock all accessed sectors and discard from cache

Return: AX = status (0000h successful)

See Also: AH=20h"QUICKCACHE",AH=35h