Restrict my vb program to running twice or more in same time

[november_pooh]

Hi group,

I already build a program with vb6. The problem is when the program is running and user click the exe file again then it makes program running twice in same time.
Is there a way to restrict this happened?

Thank you.

[Jx_Man]

I already build a program with vb6. The problem is when the program is running and user click the exe file again then it makes program running twice in same time.
Is there a way to restrict this happened?

Something like this should working :

Private Sub Form_Load()
    If App.PrevInstance = True Then
        MsgBox "Application is running!", vbExclamation, "Warning"
        End
    End If
End Sub

[november_pooh]

Wow..
I don't that it just a very simple code.
Thank you for quick help sir

[Jx_Man]

You're welcome.