I was able to convert the official JAVA socket.io Client library to a .NET library. It just worked without changing a single line of code.
ikvmc -target:library socket.io-client.jar
- Use the compiled dll file (socket.io-client.dll) in your .NET Project
Now you can 'talk' to your Socket.IO 1.x application using C#. You're project will be about 25 MB bigger, but it's worth it.. ;)