调试易

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data.OleDb;
//using Excel;
using Microsoft.Office.Interop;
//using Microsoft.Office.Interop.Excel;
using System.Reflection;namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }        private void button2_Click(object sender, EventArgs e)
        {
            Excel.Workbook wb = ThisApplication.Workbooks.Open( 
    "d:\\data.xls", 
    Type.Missing, Type.Missing, Type.Missing, Type.Missing, 
    Type.Missing, Type.Missing, Type.Missing, Type.Missing, 
    Type.Missing, Type.Missing, Type.Missing, Type.Missing, 
    Type.Missing, Type.Missing);
        }
    }
}
以上是msdn的帮助，我放到VS2005里运行说缺少命名空间，各位高手帮我看看什么问题，谢谢！