Limit the amount of times your application could be opened.

[Pc_Not_Mac]

Okay so i had this code in my library for some time now.
So i'm going to share with you.
Rate if you like it

Imports System.Threading
Public Class Form1
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim Mutex_Object As Mutex 'We will be working with Mutex
        Mutex_Object = New Mutex(False, "Pervent Twice Open") ' Were you see "Pervent Twice Open" thats were you put the name of your project.
        If Mutex_Object.WaitOne(0, False) = False Then 'lets perform the check
            MessageBox.Show("The same application is opened twice.")
            Application.Exit()
        End If
    End Sub
End Class

P.s
I have no idea were i found this code.