How to build AIR Native Extension for Windows with C#?

I recently developed native extensions for mobile projects on Adobe AIR (Android and iOS).

I want to port these ANEs for desktop projects on Windows and OSX. The OSX part is not a problem because it uses the same mechanisms as for iOS. The problem is essentially on the Windows side.

Adobe AIR offers bridges to write the native part in C / C ++, I prefer to use C# to simplify the task and access more simply .NET libraries.

Has anyone ever heard of experiments or viable projects to code a native Adobe AIR extension with C#?

I have not found a complete solution to achieve this:

Create a DLL in C # including access to FlashRuntimeExtensions.h (C Header file)
Be able to use .NET libraries from this unique DLL
Produce only one DLL file
Do not use the flash.desktop.NativeProcess library

Thank you for your help or a different point of view on these issues.

Solution

A developer sent me this link to TUARUA's FreSharp GitHub page.

It corresponds exactly to the subject of my question. I share it so that everyone can see how to create an ANE (AIR Native Extension) from C# under Windows.

So I will be able to resume my development and port my libraries for desktop computers.

Thanks to everyone.