this is code which opens new window link in same programe

Private Sub WebBrowser1_NewWindow(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles WebBrowser1.NewWindow
        ' This will be triggered only when link tries to open in new window. 
        ' That means active element in web document will always be a Link.

        Dim myElement As HtmlElement = WebBrowser1.Document.ActiveElement
        Dim target As String = myElement.GetAttribute("href")

        Dim newInstance As New Form1

        cancel opening IE window
        e.Cancel = True
    End Sub