Downloading WinUsbNet 1.0.1 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available. The most popular version among the program users is 1.0. This free program is a product of Madwizard Thomas.
We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software. The software lies within Development Tools, more precisely IDE. The program's installer file is generally known as WinUsbTest.exe. You can launch WinUsbNet on Windows 7/8 32-bit.
From the developer:
WinUSBNet is a .NET class library that provides easy access to the WinUSB API from C#, VB.NET and other .NET languages. WinUSB is a user mode API that allows low level access to USB devices such as control transfers and reading from and writing to endpoints.
You may want to check out more software, such as Greatis Form Designer.Net, ecGraph or TextSamplerDemo, which might be similar to WinUsbNet.