Prevent Duplication of Exe in Windows Applciation

Posted Date: 10 May 2009	Resource Type: Code Snippets	Category: Application windows, menus & toolbars
Author: Deepika Haridas	Member Level: Diamond
Rating:	Points: 10

Sample code which will prevent your exe from being opened multiple times.

Include this namespace : using System.Threading;


static void Main() 
{
            string proc = Process.GetCurrentProcess().ProcessName;
            Process[] prcs = Process.GetProcessesByName(proc);
            if (prcs.Length > 1)
            {
                MessageBox.Show("Application is already running.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
            else
            {
                Application.EnableVisualStyles();
                Application.Run(new Form1());
            }
}

Responses

Author: greeny_1984 11 May 2009 Member Level: Diamond Points : 1

Hi,

Nice piece of information

easily understandable

regards,

greeny_1984

Author: Aaditya Sharma 19 Jun 2009 Member Level: Gold Points : 0

good code snippet..very helpful..

Author: Viji RAJKUMAR 19 Jun 2009 Member Level: Diamond Points : 2

Hi,

The simplest way is to use Mutex.

use the System.Threading.Mutex class

Put this code in the entry point of your program


Dim mut As System.Threading.Mutex =  New System.Threading.Mutex(False, Application.ProductName)  

 Dim running As Boolean = Not mut.WaitOne(0, False) 

  'If already running   

If running Then
         Application.ExitThread() 
        Return 
  End If

Author: Chitra_19 19 Jun 2009 Member Level: Gold Points : 0

Hi,

Good piece of code..

Very helpful..

Regards,
Chitra

Author: Deepika Haridas 20 Jun 2009 Member Level: Diamond Points : 1

Hi,

Thanks for your valuable comments..

Please do RATE if its useful.

And Viji thanks for adding second method too..
It good when all solutions are at one place.

Keep contributing!!

Regards,
Deepika

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