Find out which process has an exclusive lock on a USB device handle

Question

I have a library that reads/writes to a USB-device using CreateFile() API. The device happens to implement the HID-device profile, such that it\'s compatible with Microsoft\

Answer 1

Have you tried the tool called handle from sysinternals?

Anyway, neither windows does this (display the name of the application that locked the device): when you try to eject an USB device, Windows just says that the device is currently in use and cannot be remove right now.