How to view the W3WP process by c#?

   We need to know which w3wp process is running now When we debug my website in the Visual Studio. As we know, we can use this cmd(%windir%/system32/inetsrv/appcmd list wp) to show the result in the windows2008. But, How to view the W3WP process by c#?
I give the method to you, please look this code:

        static void Main(string[] args)
        {
            string str = CmdListWP();
            Console.WriteLine(str);
            Console.WriteLine("Please press any key to exit!");
            Console.ReadLine();
        }

        private static string CmdListWP()
        {
            Process p = new Process();
            p.StartInfo.FileName = "cmd.exe";                    //設定調用程式的名稱
            p.StartInfo.UseShellExecute = false;                  //關閉Shell的使用
            p.StartInfo.RedirectStandardInput = true;         //重新導向標準輸入
            p.StartInfo.RedirectStandardOutput = true;      //重新導向標準輸出
            p.StartInfo.RedirectStandardError = true;          //重新導向錯誤輸出
            p.StartInfo.CreateNoWindow = true;                //配置不顯示視窗

            string output;
            p.Start();
            try
            {
                p.StandardInput.WriteLine("%windir%/system32/inetsrv/appcmd list wp");
                p.StandardInput.WriteLine("exit");
                output = p.StandardOutput.ReadToEnd();
            }
            finally
            {
                p.Close();
            }

            string result = string.Empty;
            if (output.IndexOf("WP \"") != -1) //是否有啟動的網站
            {
                //Regex提取
                //for example: WP "29308" <applicationPool:profile3.csdn.net>
                string pattern = "WP \"\\d+\" .+";
                List<string> list = new List<string>();
                Regex regex = new Regex(pattern);
                if (regex.IsMatch(output))
                {
                    MatchCollection mc = regex.Matches(output);
                    for (int i = 0; i < mc.Count; i++)
                    {
                        list.Add(mc[i].Value);
                    }
                }
                foreach (string str in list)
                {
                    result += str + "\n";
                }
            }
            return result;
        }

Please take attention to the code: Process p = new Process();
we can use the Process object to run the cmd.exe process, and then run the "appcmd list wp" command. after it, we can receive the output string, and analyse the string to get the result of what we want to get.