Single instance of a application

SingleInstance.cs

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Runtime.InteropServices;
using System.Threading;
using System.Windows.Forms;

namespace Child
{
    static class Program
    {
        private static readonly string MutexName = @"Global\Child-Instance-98E99708-0FE1-4310-93C5-00B10BB5605D";

        [STAThread]
        static void Main()
        {
            using (Mutex m = new Mutex(false, MutexName))
            {
                if (m.WaitOne(1))
                {
                    Application.EnableVisualStyles();
                    Application.SetCompatibleTextRenderingDefault(false);
                    Application.Run(new Form1());
                }
                else
                {
                    RaiseOtherInstance();
                }
            }
        }
        
        [DllImport("user32.dll")]
        [return: MarshalAs(UnmanagedType.Bool)]
        static extern bool SetForegroundWindow(IntPtr hWnd);

        private static void RaiseOtherInstance()
        {

            Process me = Process.GetCurrentProcess();
            foreach (Process process in Process.GetProcessesByName(me.ProcessName))
            {
                if (process.Id != me.Id)
                {
                    SetForegroundWindow(process.MainWindowHandle);
                    break;
                }
            }
        }

    }
}