INT 25 - PC-CACHE.SYS - INSTALLATION CHECK AL = FFh SI = 4358h Return: SI = 6378h if installed CX = segment of device driver PC-CACHE.SYS DX = version (major in DH, minor in DL) Program: PC-CACHE.SYS is a small device driver used by PC-Cache v5.x to obtain access to certain disk drivers for devices such as Bernoulli drives SeeAlso: INT 13/AH=A0h