Lync二次开发关于Lync启动退出问题

以前使用C++开发的version.dll文件，由于各个用户环境的不同，造成某些用户加载不了我们开发的插件，并且写version.dll的同事还没找到好的解决办法，所以得换一种思路去解决这个问题，就是Lync启动时加载我们的插件。

因此写了一个winform程序来监控进程的变化，这个程序还要设置为开机启动。下面是主要代码：

 static class Program
     {
         public static System.Threading.Mutex _run;
         /// <summary>
         /// 应用程序的主入口点。
         /// </summary>
         [STAThread]
         static void Main()
         {
             bool noRun = false;
             _run = new System.Threading.Mutex(true, "ICOLyncWindow", out noRun);
             if (noRun)
             {
                 _run.ReleaseMutex();
                 try
                 {
                     //处理未捕获的异常
                     Application.SetUnhandledExceptionMode(UnhandledExceptionMode.CatchException);
                     //处理UI线程异常
                     Application.ThreadException += new System.Threading.ThreadExceptionEventHandler(Application_ThreadException);
                     //处理非UI线程异常
                     AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException);

                     Application.EnableVisualStyles();
                     Application.SetCompatibleTextRenderingDefault(false);
                     Application.Run(new IcoLyncForm());
                 }
                 catch (Exception ex)
                 {
                     Logger.Error(ex);
                 }
             }
         }

         static void Application_ThreadException(object sender, System.Threading.ThreadExceptionEventArgs e)
         {
             Logger.Error(e.Exception);
         }

         static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
         {
             Logger.Error(e.ExceptionObject as Exception);
         }
     }

 public partial class IcoLyncForm : Form
     {
         [DllImport("user32.dll", EntryPoint = "ShowWindow", SetLastError = true)]
         static extern bool ShowWindow(IntPtr hWnd, uint nCmdShow);
         [DllImport("user32.dll", EntryPoint = "FindWindow", SetLastError = true)]
         public static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

         public IcoLyncForm()
         {
             InitializeComponent();
             this.Load += new EventHandler(Form1_Load);
         }

         void Form1_Load(object sender, EventArgs e)
         {
             Process[] p = Process.GetProcessesByName("lync");
             if (p.Length > )
             {
                 lyncnet.clsLyncNet cls = new lyncnet.clsLyncNet();
                 this.Invoke(new Action(() => { cls.NetMain(); }));
             }

             //创建WQL事件查询，用于实例创建
             var qCreate = new WqlEventQuery("__InstanceCreationEvent",
                 TimeSpan.FromSeconds(),  //WHTHIN = 1
                 "TargetInstance ISA 'Win32_Process'");
             //创建WQL事件查询，用于实例删除
             var qDelete = new WqlEventQuery("__InstanceDeletionEvent",
                 TimeSpan.FromSeconds(),  //WHTHIN = 1
                 "TargetInstance ISA 'Win32_Process'");

             //创建事件查询的侦听器（ManagementEventWatcher）
             var wCreate = new ManagementEventWatcher(qCreate);
             var wDelete = new ManagementEventWatcher(qDelete);

             wCreate.EventArrived += new EventArrivedEventHandler(wCreate_EventArrived);
             wDelete.EventArrived += new EventArrivedEventHandler(wDelete_EventArrived);

             //异步开始侦听
             wCreate.Start();
             wDelete.Start();

             IntPtr intptr;
             try
             {
                 do
                 {
                     intptr = FindWindow(null, "ICOLync");
                     if (intptr != IntPtr.Zero)
                     {
                         ShowWindow(intptr, );
                     }
                 }
                 while (intptr == IntPtr.Zero);
                 IcoLync.Util.RegistryHelper.RunWhenStart(true, "ICOLync", AppDomain.CurrentDomain.BaseDirectory + "ICOLync.exe");
             }
             catch (Exception ex)
             {
                 Logger.Error(ex);
             }
         }

         //输出事件对应的ManagementBaseObject（本例中的Win32_Process实例）的信息
         static string GetInfo(ManagementBaseObject mobj)
         {
             var instance = (ManagementBaseObject)mobj["TargetInstance"];
             return instance["Name"].ToString();
         }

         void wCreate_EventArrived(object sender, EventArrivedEventArgs e)
         {
             if (GetInfo(e.NewEvent).Equals("lync.exe"))
             {
                 lyncnet.clsLyncNet cls = new lyncnet.clsLyncNet();
                 this.Invoke(new Action(() => { cls.NetMain(); }));
             }
         }

         void wDelete_EventArrived(object sender, EventArrivedEventArgs e)
         {
             if (GetInfo(e.NewEvent).Equals("lync.exe")) this.RestartMe();
         }

         private void RestartMe()
         {
             Program._run.Close();
             Process.Start(Application.ExecutablePath);
             Process.GetCurrentProcess().Kill();
         }
     }

这个winform程序启动之后调用win32 api隐藏起来。检测到新增Lync.exe进程时，注册ICOLync插件，Lync.exe进程注销后，重启winform程序。开始还考虑把winform程序的进程保护起来，很麻烦，不同的操作系统，出现的状况还不一样，所以取消了。

2013.7.26修改：

使用System.Threading.Mutex互斥体，实现程序只启动单一进程，发现有一个Bug，在windows多用户的情况下，每一个用户都可以启动一个进程，所以要保持整天计算机只启动一个进程，应改为如下：