我用这code启动一个可执行文件：

I am starting an executable using this code:

Process proc = new Process();
proc.StartInfo.FileName = executablePath;
proc.Start();
proc.WaitForInputIdle();

该电话后， proc.Id 它给了我一些整数，这是不是真正的进程ID。在任务管理器还有另外一个ID为这个过程中，也我使用MS UI自动化访问此应用程序，这也将返回相同的ID在任务管理器。所以我的问题是我如何开始进程的实际进程ID？

after this calling proc.Id it gives me some integer, which is not real process ID. In the task manager there is another ID for this process and also I am using MS UI Automation to access this application, which also returns the same ID as in task manager. So my question is how can I get the real process ID of started process?

更新

我发现，在Windows 7上正常工作，并返回我正确的ID，但不能在Windows XP上。什么原因？

I found out that on Windows 7 it works fine and returns me the right ID, but not on Windows XP. What can be the reason?

情景

应用程序的场景是以下内容。我有一个运行嵌入式HTTP服务器，这是我不落实，（这里是源）。客户端连接到web服务器和发送请求以运行程序。在我的服务器的请求处理程序，我只是使用的Process.Start（）启动请求的应用程序。作为Web服务器程序创建线程连接到它的每一个客户端会话（我认为是这样，因为我没有写的）。可这在某种程度上有助于发现问题，因为它的存在只能在Windows XP X86的Service Pack 3？

The scenario of the application is the following. I have a running embedded HTTP server, which is implemented not by me, (here is the source). The client connects to the web server and sends a request to run a program. In the request handler of my server I am just using Process.start() to start the requested application. As a web server the program creates threads for every client session connected to it (I assume so, as I didn't wrote it). Can this somehow help to identify the problem as it exists only on Windows XP X86 Service Pack 3?

推荐答案

我是如何做到的的一个例子：

An example of how I did it:

    bool started = false;
    var p = new Process();

    p.StartInfo.FileName = "notepad.exe";

    started = p.Start();

    try {
      var procId = p.Id;
      Console.WriteLine("ID: " + procId);
    }
    catch(InvalidOperationException)
    {
        started = false;
    }
    catch(Exception ex)
    {
        started = false;
    }

否则，请尝试使用这样的句柄： Using处理 Getting处理器

Otherwise, try using handles like this: Using handlers Getting handler

hWnd = (int) process.MainWindowHandle;
int processId;
GetWindowThreadProcessId(hWnd, out processId);

[DllImport("user32")]
static extern int GetWindowThreadProcessId(IntPtr hWnd, out int processId);

附注： 如果你处理的阵列，并在它们之间迭代和比较的PID会发生什么？

Side note: What happens if you get the array of process and iterate over them and compare the PIDs?

Process[] p = Process.GetProcessesByName( "testprogram" );
foreach(var proc in p)
    Console.WriteLine("Found: "+proc.Id == myExpectedProcId);