By the way wetsmellydog, make sure you did what I said above before running the AHK script, otherwise you will get random readings.
(Just ONCE though! )
-wreckedcarzz
According to the help file on diskperf.exe, it is not necessary to run the script in XP.
See below
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
C:\Documents and Settings\Mr Comp>diskperf.exe -y
Both Logical and Physical Disk Performance counters on this system
are automatically enabled on demand.
Raw counters are also enabled for IOCTL_DISK_PERFORMANCE.
C:\Documents and Settings\Mr Comp>diskperf.exe /?
DISKPERF [-Y[D|V] | -N[D|V]] [\\computername]
-Y Sets the system to start all disk performance counters
when the system is restarted.
-YD Enables the disk performance counters for physical drives.
when the system is restarted.
-YV Enables the disk performance counters for logical drives
or storage volumes when the system is restarted.
-N Sets the system to disable all disk performance counters
when the system is restarted.
-ND Disables the disk performance counters for physical drives.
-NV Disables the disk performance counters for logical drives.
\\computername Is the name of the computer you want to
see or set disk performance counter use.
The computer must be a Windows 2000 system.
NOTE: Disk performance counters are permanently enabled on
systems beyond Windows 2000.