Winform single instance

SingleInstance.cs

using Microsoft.VisualBasic.ApplicationServices;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;

namespace WinFormsSingleInstance
{
    static class Program
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            
            SingleInstanceController controller = new SingleInstanceController();
            // args needed for controller.Run()
            string[] args = Environment.GetCommandLineArgs();
            controller.Run(args);
        }

        // creates only single instance of application
        public class SingleInstanceController : WindowsFormsApplicationBase
        {
            public SingleInstanceController()
            {
                IsSingleInstance = true;

                StartupNextInstance += this_StartupNextInstance;
            }

            void this_StartupNextInstance(object sender, StartupNextInstanceEventArgs e)
            {
                Form1 form = MainForm as Form1; //My derived form type
            }

            protected override void OnCreateMainForm()
            {
                MainForm = new Form1();
            }
        }
    }
}