Int 13 Fn 22  u - Quickcache Ii V4.20 - Enable/disable Cache               [c]

   AH = 22h
   AL = new state (00h disabled, 01h enabled)

Return: AX = status (0000h successful)

Note:  enables/disables caching of all drives

See Also: AH=2Ch,AH=2Dh,AH=32h,AH=33h,AH=A3h,AH=A4h