VB2010 Conectarse a una BD via DNS o DSN

Funcion para conectarse a Base de datos, cualquiera, via DNS desde visual basic 2010.

'Funcion para conectarsea base de datos DB2
    Public Function Conectar(ByVal Servidor As String, ByVal Usuario As String, ByVal Password As String) As Boolean
        cnString = "DSN=SPEED;Uid=" & Usuario & ";Pwd=" & Password & ";"
        conn = New OdbcConnection(cnString)
        Try
            Cursor.Current = Cursors.WaitCursor
            'Aperturamos conexión
            conn.Open()
            If conn.State = ConnectionState.Open Then Conectar = True Else Conectar = False
            Cursor.Current = Cursors.Default
        Catch ex As Odbc.OdbcException
            MessageBox.Show("Error: " & ex.ToString & vbCrLf)
        End Try
    End Function