讓你的電腦只識別你的優盤

     
     目前各種優盤病毒橫行，特別是我所在實驗室的電腦是會被別人使用的，對別人優盤上面的病毒十分煩惱，有一段時間我在CIMS參數裡面封掉了USB介面，然而啟動USB介面還需要重新啟動電腦，很麻煩。
     那麼如何用程式的方式關閉和啟動USB介面呢？如何讓你的電腦只使用你的優盤呢？
     如果感興趣，繼續看下去。
     1.在form1類裡面重載windows訊息接受函數，檢測優盤插入。 
     2.檢測優盤的認證資訊。    
     3.如果認證不是你的優盤，掉用windows外殼組件shell.dll。執行優盤的右擊菜單中的“彈出”。
     註：1.可以在你的優盤中放一個文字檔（txt，excel、ini、rtf、xml等）儲存密碼資訊，該密碼作為認證的憑證。
         2.通過shell.dll調用能執行windows系統中的幾乎所有的捷徑功能表（前面有文章已經給出了源碼），當然執行優盤格式化也是可以的，如果防止病毒傳染，檢測到優盤插入，直接格式化也不錯。

   主要源碼：
         1.檢驗隨身碟插入代碼
         const int DBT_DEVICEARRIVAL = 0x8000;
         const int DBT_DEVICEREMOVECOMPLETE = 0x8004;
         protected override void WndProc(ref Message mess)
          {
            try
            {
                if (m.Msg == WM_DEVICECHANGE)
                {
                    switch (m.WParam.ToInt32())
                    {
                      case DBT_DEVICEARRIVAL://隨身碟插入
                            DriveInfo[] s = DriveInfo.GetDrives();
                            foreach (DriveInfo drive in s)
                            {
                                if ((drive.DriveType == DriveType.Removable)
                                                &&(drive.Name.ToString()=="A:\\"))
                                {
                                    //listBox1.Items.Add("隨身碟已插入，盤符為:"            
                                                             +drive.Name.ToString());
                                    //MessageBox.Show("優盤插入！盤符為：" + drive.Name.ToString
                                          (),"注意");
                                    tan_chu();
                                    break;
                                }
                            }
                            break;
                        case DBT_DEVICEREMOVECOMPLETE: //隨身碟卸載
                            //MessageBox.Show("優盤已經卸載。");
                            break;
                        default:
                            break;
                    }
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
            base.WndProc(ref mess);
        }
        2.彈出隨身碟代碼

        static private void tan_chu()
        {
            Shell32.Shell sh = new Shell32.Shell();
            Shell32.Folder sf = sh.NameSpace(17);//diann
            Shell32.FolderItems fis = sf.Items();

            while (true)
            {
                try
                {
                    for (int i = 0; i < fis.Count; i++)
                    {
                        string itemName = fis.Item(i).Name.ToString();
                        if (itemName == "可移動磁碟 (K:)")
                        {
                            Shell32.FolderItemVerbs fivs = fis.Item(i).Verbs();

                            foreach (Shell32.FolderItemVerb fv in fivs)
                            {
                                string name = fv.Name.ToString();
                                if (name == "彈出(&J)")
                                {
                                    fv.DoIt();
                                    // break;
                                }
                                //if (name == "掃描病毒(&K)")
                                //{
                                //    fv.DoIt();
                                //    // break;
                                //}
                            }
                        }
                    }
                }
                catch (Exception ex)
                {
                    string exx = ex.Message.ToString();
                }
            }