Does anyone know how to do single instance in VB.. Pls help me...
What exactly are you asking? Please describe the problem better.
I don't think there is any one specific way to limit a program to a single instance. Some use a registry entry to determine if there is an instance already running, while others use a file or create a system-wide semaphore (see MSDN for CreateSemaphore() win32 api function)
> Does anyone know how to do single instance in VB.. Pls help me...
Are you talking about creating class instances in a VB program... ?
Use this Code :
In ur MDIFormLoad Or the StartUp Form Load.
Private Sub MYMDIForm_Load() If App.PrevInstance Then End End If End Sub