C#/.NET: Closing another process outside the main window

Question

I just wanna ask your opinion/suggestion on how to 'terminate' a running application/process is C#

Right now, I do have the following codes:

    Process myProcess;
    private void btnOpen_Click(object sender, RoutedEventArgs e)
    {
        DirectoryInfo di = new DirectoryInfo(System.Environment.GetFolderPath(Environment.SpecialFolder.Programs));
        myProcess = Process.Start(di + @"\Wosk\Wosk.appref-ms"); // opening a file coming for Startup Menu
    }

    private void btnClose_Click(object sender, RoutedEventArgs e)
    {
        myProcess.Kill(); // not working - Cannot process request because the process has exited
    }

I also tried myProcess.Close(); but nothing's happening.

Answer 1

You should have a look at

Process.HasExited Property

A process can terminate independently of your code. If you started the process using this component, the system updates the value of HasExited automatically, even if the associated process exits independently.