The documentation goes to some length about how to first check the active configuration, before attempting to set a configuraiton. However, usb_get_configuration() is not exported. Is the documentation outdated (not ncessary to check the configuraiton) or should this funciton be exported? I think that iven if the check is not necessary, this is funcitonality that should be exposed to the client.
Closing old entry. Please use libusb-win32 mailing list for future discussions.