Winforms App facts

While investigating facts about Winforms Application and Winforms Application.run, I found out little known, but curios details like:

how to set a startup form in c# winforms application?

What is winforms apps?

In my opinion, it is useful to put together a list of the most interesting details from trusted sources that I've come across. Here are 0 of the best facts about Winforms App.config and Winforms Application Settings I managed to collect.

what is a winforms application?