USB API for Windows

All USB devices has unique Pid, Vid. You can use generic library to interact with its end points for me I am using cypress library which has 2 versions for managed and unmanaged languages.

http://www.cypress.com/?rID=34870

Keep in mind the license for this library is free of charge if used with cypress powered devices only. But you can check it and use native APIs to achieve the same behavior but it supports some good features epically high speed transfer to bulk end points.

Also check this question Working with USB devices in .NET

Yes there is.

Its called WinUSB - http://msdn.microsoft.com/en-us/library/windows/hardware/ff540196(v=vs.85).aspx

Sample WinUSB code found here - http://msdn.microsoft.com/en-us/library/windows/hardware/ff540174(v=vs.85).aspx