Disable USB Charging on Windows Mobile devices

If your device can charge over USB, you can probably disable this feature by setting:

HKLM\Drivers\BuiltIn\usbfndrv\EnableUsbCharging = 0 (DWORD decimal)

And to re-enable:

HKLM\Drivers\BuiltIn\usbfndrv\EnableUsbCharging = 1 (DWORD decimal)