Public Class Form1
    Private f2 As New Form2
 
    Private Sub Form1_Click(ByVal sender As System.Object, ByVal e As _
      System.EventArgs) Handles MyBase.Click
        f2.Focus()
    End Sub
 
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As _
      System.EventArgs) Handles MyBase.Load
        f2.Show()
    End Sub
End Class

Public Class Form2
 
    Private Sub Form2_Click(ByVal sender As System.Object, ByVal e As _
      System.EventArgs) Handles MyBase.Click
        My.Application.OpenForms(0).Focus()
    End Sub
End Class