FCL小应用系列-----------如何使得程序只能有一个实例运行？

namespace TestListView
{
    static class Program
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {
            if (CreateMutex("MutexName"))
            {
                Application.EnableVisualStyles();
                Application.SetCompatibleTextRenderingDefault(false);
                Application.Run(new Form1());
                ReleaseMutex();
            }
            else
            {
                MessageBox.Show(
                    "已经有一个实例运行，只能运行一个实例!"
                    ,"程序名称", MessageBoxButtons.OK);
            }
        }
        private static Mutex mutex = null;
        public static bool CreateMutex(string name)
        {
            bool result = false;
            mutex = new Mutex(true, name, out result);
            return result;
        }
        public static void ReleaseMutex()
        {
            if (mutex != null)
            {
                mutex.Close();
            }
        }
    }
}