libusb-win32 is a port of the libusb-0.1 API for Windows with some additional asynchronous transfer support. The library allows user space applications to access many USB device on Windows.
There are two parts of this project: digital signed kernel driver (libusb0.sys) and user space library (libusb0.dll).
Status: supported
Maintained by Peter Dons Tychsen (developer) and Xiaofan Chen (technical support)