How to Assign a Device Handler to a Device
Illustrates the process for adding a device handler to a device.
To assign a device handler to a device, under the Device Parameters subkey of the device instance, add a value of type REG_SZ named DeviceHandlers. The data entry for this value is the name of the device handler.
The following is an example entry for a fictitious Vid_059&Pid_0031 device.
HKEY_LOCAL_MACHINE SYSTEM CurrentControlSet Enum USB Vid_059b&Pid_0031 059B003112010E93 Device Parameters DeviceHandlers = MyDeviceHandler