using System.Diagnostics;//引入Process 類

private Process[] MyProcesses;

MyProcesses = Process.GetProcessesByName("SajetManager");//需要監控的程序名，該方法帶出該程序所有用到的進程
foreach (Process myprocess in MyProcesses)
{
    textBox1.Text += myprocess.ProcessName + "/r/n";
    if (myprocess.ProcessName.ToLower() == "sajetmanager")
    {
        MessageBox.Show("SajetManager");
        myprocess.EnableRaisingEvents = true;//設置進程終止時觸發的時間
        myprocess.Exited += new EventHandler(myprocess_Exited);//發現外部程序關閉即觸發方法myprocess_Exited
    }
}
 
private void myprocess_Exited(object sender, EventArgs e)//被觸發的程序
{
    MessageBox.Show("SajetManager close");
}