How to prevent two Processes running the Same Application

With this example, we show how to avoid the execution of two processes of the same application. With vb net we can mark the box 'make single-instance' in the properties section of the project application. This option is not available in an application running with C #, and it comes in handy here that the Mutex class.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;
using System.Threading;
namespace MutexClassExample
{
static class Program
{
static Mutex m;
/// <summary>
/// </summary>
[STAThread]
static void Main()
{
bool first = false;
m = new Mutex(true, Application.ProductName.ToString(), out first);
if ((first))
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Form1());
m.ReleaseMutex();
}
else
{
MessageBox.Show("Application" + " " + Application.ProductName.ToString() + " " +"already running");
}
}
}
}