Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As _
  System.EventArgs) Handles MyBase.Load
 
        Test = New Class1()
        Dim myThread As System.Threading.Thread
 
        Test.Obergrenze = 800
        myThread = New Threading.Thread(AddressOf Test.test)
        myThread.Start()
 
    End Sub