Well it depends what you want to do. You can call it on the FormLoad event or on a button click event or in the constructor. However I would recommen that you learn the basics first.
Haha, I was watching exactly this video in your first link while making such application. Anyway, thanx for the links. I'm pretty straightfoward at this and I'm not planning to learn everything, I just need to make the application which boots silently (it means noticable only in task manager) and launches a few programs at once precisely in windows form (to avoid another conhost
.exe proccess in task manager at the time) if it's possible.