How do I start a process from C#?

Question

How do I start a process, such as launching a URL when the user clicks a button?

Answer 1

class ProcessStart
{
    static void Main(string[] args)
    {
        Process notePad = new Process();

        notePad.StartInfo.FileName   = "notepad.exe";
        notePad.StartInfo.Arguments = "ProcessStart.cs";

        notePad.Start();
    }
}