关于在程序读取access里面表名的问题，请教！！！

public string[] GetShemaTableName(string database_path)
    {
        OleDbConnection conn = new OleDbConnection();
        try
        {
            //获取数据表            conn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Jet OLEDB;Data Source=" + database_path;
            conn.Open();
            DataTable shemaTable = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new object[] { null, null, null, "TABLE" });
            int n = shemaTable.Rows.Count;
            string[] strTable = new string[n];
            int m = shemaTable.Columns.IndexOf("TABLE_NAME");
            for (int i = 0; i < n; i++)
            {
                DataRow m_DataRow = shemaTable.Rows[i];
                strTable[i] = m_DataRow.ItemArray.GetValue(m).ToString();
            }
            return strTable;
        }
        catch (OleDbException ex)
        {
            Response.Write("指定的限制集无效:\n" + ex.Message);
            return null;
        }
        finally
        {
            conn.Close();
            conn.Dispose();
        }
    }
上面代码的报错是   找不到可安装的ISAM
查看过注册表  好像没问题  也修复了OFFICE  还是不行 请教各位大侠了