Libusb-win32 is a port of the USB library libusb to the Windows operating systems (Win98SE, WinME, Win2k, WinXP). The library allows user space applications to access any USB device on Windows in a generic way without writing any line of kernel driver code.
Features:

• Can be used as a filter driver for existing, already installed devices. This feature allows libusb-win32 to communicate with any installed USB device.
• Can be used as a normal device driver for devices for which no driver exists (self build/developed USB hardware, etc).
• The two methods described above can used in parallel without any problems.
• 100% API and functional compatible with the main libusb project.
• Supports Bulk and Interrupt transfers.
• Supports all Standard Device Requests (control messages) described in chapter 9 of the USB specification.
• Supports vendor specific control messages.