Int 2F Fn C000  O - Aspihook.sys - Installation Check                      [i]

   AX = C000h

Return: AL = FFh if multiplex number in use
       ES:DI -> ASCIZ signature "ASPIHOOK" if ASPIHOOK.SYS installed
Program: ASPIHOOK is a device driver for monitoring SCSI activity through an
     ASPI host manager; it is part of the Personal Measure system
     activity monitor from Spirit of Performance, Inc.
Range: AH=C0h to AH=FFh, selected by scanning for first free multiplex number

See Also: AX=C000h"PMEASURE"