Conexion Access + Using vb.net

[Ascariz]

Hola a todos.

Estoy intentando conectar access con using y web.config pero me da un error y no se como solucionarlos.

web.config

Código:

<connectionStrings>
    <add name="ConnectionStringAccess" connectionString="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|\Base-datos.mdb;Persist Security Info=True;Jet OLEDB:Database Password=PASS" providerName="System.Data.OleDb"/>
  </connectionStrings>

Código

Código:

        Using con As New OleDbConnection
            con.ConnectionString = System.Configuration.ConfigurationManager.AppSettings("ConnectionStringAccess")
            con.Open()
            Using cmd As New OleDbCommand
                Dim sql_insert As String

                sql_insert = "SELECT * FROM Usuarios WHERE usu=@usu AND pass=@pass' and activa = true "

                cmd.Parameters.Add("@usu", SqlDbType.NVarChar, 250)
                cmd.Parameters.Add("@pass", SqlDbType.NVarChar, 250)

                cmd.Parameters("@usu").Value = usu
                cmd.Parameters("@pass").Value = pass

                cmd.CommandText = sql_insert
                cmd.Connection = con

                Dim odrUsuario As OleDbDataReader = cmd.ExecuteReader()
                If odrUsuario.Read Then

                    Session("AdminREgistrado") = odrUsuario("Idusuario").ToString
                    Response.Redirect("Pricipal.aspx")
                Else
                    ' error
                End If



            End Using
            con.Close()
        End Using