Zadig is a Windows application that installs generic USB drivers, such as WinUSB, libusb-win32/libusb0.sys or libusbK, to help you access USB devices. It can be especially useful for cases where: you want to access a device using a libusb-based application you want to upgrade a generic USB driver you want to access a device using WinUSB Note: "libusb-based" above means an application that uses eit