This thread is for discussions of Prevent Multiple Instances.

Private Sub Main()
       If App.PrevInstance Then End
'won't get here if Ended
       Call MainFormLoad ' whatever you name it to initialize your app
End Sub

Can I get to know, how this can be done in C# for a Windows Application as an Example?

In Asp.Net How Can Prevent To User Can't Open more than one window of same site on same machin.plz give me right solution and code in c# ASAP.

Thanks & Regards

 Kunal Manohar