Re: Ensure only one instance running

Phil Sayers <[email protected]> Fri, 21 Dec 2007 09:00:34 -0500
Newsgroups gmane.comp.windows.devel.dotnet.winforms
Message-ID <[email protected]>
I was incorrect...

just google for this full text string
"How to: Specify Instancing Behavior for an Application "


-----Original Message-----
From: Discussion forum for developers using Windows Forms to build apps
and controls [mailto:[email protected]]On Behalf Of
Graeme Hood
Sent: Friday, December 21, 2007 8:53 AM
To: [email protected]
Subject: [DOTNET-WINFORMS] Ensure only one instance running


I have this code to make sure my app can't run twice. But I seem to
remember there was a newer/better way in the latest .Net FW.

Is there?

====================================================

public static void Main()

bool firstInstance = false;

string safeName = Application.UserAppDataPath.Replace(@"\", "_");

Mutex mutex = new Mutex(true, safeName, out firstInstance);

if (!firstInstance) return;

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