Public Class Form1
 
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As _
      System.EventArgs) Handles Button1.Click
        Dim f2 As New Form2
        f2.Show()
        f2.instance.TextBox1.Text = "hallo"
    End Sub
 
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As _
      System.EventArgs) Handles MyBase.Load
 
    End Sub
End Class

Public Class Form2
 
    Public instance As Form2
 
    Private Sub Form2_Load(ByVal sender As System.Object, ByVal e As _
      System.EventArgs) Handles MyBase.Load
        instance = Me
    End Sub
End Class

EALA FREYA FRESENA