A visitor to my site came from google with the following query: "create a dsl connection in c#".My short answer to this would be that you can't create a specific dsl connection in c#. You just create TCP connections like you would in any programming and Windows will manage what network interface it will go over.look in to System.Net.Sockets and System.Net to see what you can do. Its not a great answer but I hope that it helps.
I lead the Chrome Developer Relations team at Google.
We want people to have the best experience possible on the web without having to install a native app or produce content in a walled garden.
Our team tries to make it easier for developers to build on the web by supporting every Chrome release, creating great content to support developers on web.dev, contributing to MDN, helping to improve browser compatibility, and some of the best developer tools like Lighthouse, Workbox, Squoosh to name just a few.