Sample Download : http://code.msdn.microsoft.com/CSWinFormSingleInstanceApp-d1791628
The SingleInstanceApp sample demonstrates how to achieve the goal that only one instance of the application is allowed in Windows Forms application. In this sample, we are taking advantage of VB.NET Framework since it has built-in support for single instance application.
You can find more code samples that demonstrate the most typical programming scenarios by using Microsoft All-In-One Code Framework Sample Browser or Sample Browser Visual Studio extension. They give you the flexibility to search samples, download samples on demand, manage the downloaded samples in a centralized place, and automatically be notified about sample updates. If it is the first time that you hear about Microsoft All-In-One Code Framework, please watch the introduction video on Microsoft Showcase, or read the introduction on our homepage http://1code.codeplex.com/.
This is for the first time that I am heard about Microsoft All-in-one Code Framework, I have gone through the video link which you have given in the link. It's good, but can we get the updates for this framework?
<a href="www.sampleforms.in/">Sample forms</a>
That's a nice little example - works beautifully in my application.