Sorry to gang-necropost, but hoping this has some people still watching it.
I've had this problem for a couple years. My problem is that I am partially disabled, and use a
foot mouse. Bili, the manufacturer, has been very kind and replaced it three times over the past 2 years. Every other foot mouse I've tried sucks, so buying another type isn't really an option.
They say cables are fragile and to do whatever I can to avoid stressing or stretching them. Unfortunately, the cables aren't long enough to reach from where I use the foot mouse to where I have to dock the laptop without stressing the cable. Last week, I unwrapped the 3rd replacement they sent and used a very nice 6' extension cable to attach it to the computer.
The mouse turned off within an hour of use. I can't win.
Windows XP v 2003 with SP3 on a ThinkPad T400.
Further details. Based on another tip, I looked in my registry and found there were 20 devices listed under the key HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4D36E96F-E325-11CE-BFC1-08002BE10318}.
17 of them have the identical values:
[cpp]
(Default) REG_Z (value not set)
DriverDate REG_Z 7-1-2001
DriverDateData REG_BINARY 00 80 62 c5 c0 01 c1 01
DriverDesc REG_Z HID-compliant mouse
DriverVersion REG_Z 5.1.2600.0
InfPath REG_Z msmouse.inf
InfSection REG_Z HID_Mouse_Inst
InfSectionExt REG_Z .NT
MatchingDeviceId REG_Z hid_device_system_mouse
ProviderName REG_Z Microsoft[/cpp]
Hoping anyone has had success in making Windows XP stop the powerdown shenanigans.