有没有办法检测进程是否/何时在C#.Net 2.0中启动另一个进程？

using System;
using System.Diagnostics;

class Program
{
    static void Main()
    {
        string processName = "notepad.exe";

        // 检查进程是否已经启动
        Process[] processes = Process.GetProcessesByName(processName);
        if (processes.Length > 0)
        {
            Console.WriteLine($"{processName} 已经启动。");
        }
        else
        {
            // 启动进程
            Process process = new Process();
            process.StartInfo.FileName = processName;
            process.Start();
            Console.WriteLine($"{processName} 已经启动。");
        }
    }
}