在网络上查阅了很多关于通过DotMSN开发包来开发MSN机器人的小程序，为了验证其正确性，本人亲自测试，发现了这样一篇文章，他写的很好，没有问题。下面就贴出源代码，和大家分享。请提前在项目引用中添加下载到的DotMSN.dll文件，再using DotMSN;
Code using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using DotMSN; namespace MSNBotTest { public partial class Form1 : Form { public Form1() { InitializeComponent(); } DotMSN.Messenger msn = new DotMSN.Messenger();//初始化一个Messenger对象用来登陆服务器 private void button1_Click(object sender, EventArgs e) { try { statusBar1.Text="正在连接到服务器
"; msn.ConversationCreated += new Messenger.ConversationCreatedHandler(ConversationCreated); msn.Connect(textBox1.Text, textBox2.Text);//前一个为用户名，后一个为密码 msn.SynchronizeList();初始化列表，用来显示在线用户 statusBar1.Text="成功连接到服务器"; } catch (DotMSN.MSNException me) { MessageBox.Show(me.ToString()); } } private void ReadMsg(Conversation sender, DotMSN.MessageEventArgs e) { //string content; string input = e.Message.Text; if (input.Equals("j")) { string content = "你好，我是机器人小范"; sender.SendMessage(content); } else if (input.StartsWith("H")) { string content = "我很笨,很多功能还在开发哦"; sender.SendMessage(content); } else { string content = "你好啊,我不知道你说的是什么啊,有什么事情请输入H"; sender.SendMessage(content); } } private void ConversationCreated(Messenger sender, ConversationEventArgs e) { e.Conversation.MessageReceived += new Conversation.MessageReceivedHandler(ReadMsg); } private void button2_Click(object sender, EventArgs e) { try { ShowAll(); } catch (Exception ex) { MessageBox.Show(ex.ToString()); } } private void ShowAll() { try { msn.SetStatus(MSNStatus.Online); AllListView.Clear(); foreach (Contact contact in msn.GetListEnumerator(MSNList.ForwardList)) { ListViewItem item = new ListViewItem(contact.Name); item.Tag = contact; if (contact.Status != MSNStatus.Offline) { AllListView.Items.Add((item + "在线").Remove(0, 14)); } // if(contact.Status == MSNStatus.Busy) // { // AllListView.Items.Add(item+"忙碌"); // } // if(contact.Status == MSNStatus.Away) // { // AllListView.Items.Add(item+"离开"); // } else { AllListView.Items.Add((item + "离线").Remove(0, 14)); } } } catch (Exception ex) { MessageBox.Show(ex.ToString()); } } private void button3_Click(object sender, EventArgs e)//用来断开连接 { msn.CloseConnection(); } } }