Hente en class ind i en anden class

Noget i denne stil:

Public Class Protection: Inherits Page
    Public Sub Page_Load()
        If HttpContext.Current.Session("logged") Is Nothing Then
            Response.Redirect("Logind.aspx")
        End If
    End Sub
End Class

Public Class defaultPage: Inherits Page
    'Import Protection / Dim Protection As New Protection() / What ever
    Sub Page_Load()

    End Sub
End Class

Nogen der ved hvordan?..