Win form and threading?

In windows application, I want in new thread to show form. How to do that?

regard j

First import the System.Threading namespace

VB Code:

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim t As New Thread(AddressOf Me.MySub)
        t.Start()
End Sub
 
Sub MySub()
        Dim f As New Form1
        f.ShowDialog()
End Sub