How to check if the previous instance of the Application is already running in c#.Net

The following code illustrates how to check if previous instance of the application is running

using System.Diagnostics;


public void CheckForExistingInstance()
{
Process process = Process.GetCurrentProcess();

if (Process.GetProcessesByName(process.ProcessName).Length > 1)
{
MessageBox.Show("Another Instance of this process is already Running",
"Multiple Instance Forbidden", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
Application.Exit();
}

}

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