How to running an application just one instance at time?

[hlancelot]

Hello.

I need to run a windows console application (.NET, C#), but avoidding the execution another instance of the same application at same time.

How to do that?

[sonnyzhang]

Use System.Process to see if a process from the same executable file exist

[renath]

Hallo,
try to resolve your problem with this, maybe it'll help you.
r.

try
{
bool firstInstance = false;
System.Threading.Mutex mutex = new System.Threading.Mutex(true, Application.ProductName, out firstInstance);
if(!firstInstance)
{
MessageBox.Show("You cannot run application twice.","Information");
return;
}

Application.Run(new TableForm ());
}
catch(Exception ex)
{
MessageBox.Show(ex.Message);
}

[hlancelot]

Thank you very much!

The mutex solution works perfectly!

[Anders Jansson]

I have problem with the above code when running application in release mode?

The firstInstance seems to be true all the time.

Anyone having simular problems?