Force Single Instance with Mutex handling restart application

Question

I have a problem when i want use mutex to force single instance of my program.

I a winform App with a WebBrowser Control. I need to autorestart if certain conditions ar

Answer 1

I do:

    bool onlyInstance = false;
        mutex = new System.Threading.Mutex(true, "qFluid", out onlyInstance);
        int cntrSec = 0;
        //per far funzionare restart ,aspetto per 3 sec per vedere se va via servizio 
        while (!onlyInstance & cntrSec < 3)
        {
            System.Threading.Thread.Sleep(1000);
            cntrSec += 1;
        }

        if (!onlyInstance)
        {
            Xceed.Wpf.Toolkit.MessageBox.Show("The application is already arunning");
            App.Current.Shutdown();
        }