Sub DelStartUdpLister_Start(ByVal listbox As System.Windows.Forms.ListBox)
            Dim Del_form As Form1
            Dim DelInstance As New DelStartUdpListener(AddressOf _
              Me.startUDPListener)
            Del_form.Invoke(DelInstance, New Object() {data})
        End Sub

Private Function Start_Thread2() '(ByVal listbox As 
' System.Windows.Forms.ListBox)
            Dim thread2 As Threading.Thread
            thread2 = New Threading.Thread(AddressOf ???)
            thread2.Start()
        End Function