Sub Application_BeginRequest(ByVal sender As Object, ByVal e As EventArgs)
        Dim page As String = Request.Path
        If (page.ToLower().Contains("product.aspx")) Then
            Try
                Dim id As String = Request.PathInfo.Substring(1).Split("/")(0)
                Context.RewritePath(String.Format( _
                  "/Pages/product.aspx?ProductID={0}", id))
            Catch ex As Exception
 
            End Try
 
 
        End If
 
    End Sub

Ciao

J?rgen

PS: geht nicht gibt's nicht