hey.
It's always cool to see new people trying out programming.
you probably selected the programming language when you made the project in visual studio.
do you have a free version or the professional version?
you can find the programming language pretty easily by looking at the files that are created in your project.
.cs is C#, .vb is visual basic, .cpp and .h is C++ (which it's most likely not) (and the version of C++ in .NET is very crappy anyway)
my personal recommendation is C# if you're going for a .NET application. since it has a very similar syntax to a bunch of other popular programming languages. most notably Java and to a certain degree C++.
Also, it's among the .NET languages the most universally used right now, and I believe the language that MS is focusing on the most.
The text file to save servers is probably a good place to start. opening and editing a txt file is fairly easy and there are a metric ton of tutorials out there.
I'm not an expert, (yet

) but I'd be happy to answer any questions if you have them.