Как подключить драйвер OleDB Fox-Pro?

 private void button3_Click(object sender, EventArgs e)
        {
            //string FilePath = "C:\\test";
            string DBF_FileName = "dbnakl";
            OleDbConnection conn;
            OleDbDataAdapter oledbAdapter;
            DataSet ds;
            OleDbCommand cmd;
            ds = new DataSet();
            string connetionString = null;
            connetionString = "Provider=vfpoledb;Data Source=K:\\vera_old\\old\\dbnakl.dbc;Collating Sequence = machine";
            conn = new OleDbConnection(connetionString);
            try
            {
                conn.Open();
                //.Text = "Open File:" + strFileName;
                MessageBox.Show("Open!");
            }
            catch (Exception ex)
            {
                //toolStripStatusLabel2.Text = "Can not open connection ! " + ex;
            }
            string Sql = "select * from " + DBF_FileName;
            oledbAdapter = new OleDbDataAdapter(Sql, conn);
            oledbAdapter.Fill(ds);
            dataGridView1.DataSource = ds.Tables[0]; ;
        
        }

  connetionString = "Driver ={ Microsoft Visual FoxPro Driver}; SourceType = DBF; SourceDB = c:\\test;" +
                "           Exclusive = No; Collate = Machine; NULL = NO; DELETED = NO; BACKGROUNDFETCH = NO;";