EventLog log = new EventLog();
try
{
  log.Source = "我的應(yīng)用程序";
  log.WriteEntry("處理信息1", EventLogEntryType.Information);
  log.WriteEntry("處理信息2", EventLogEntryType.Information);
  throw new System.IO.FileNotFoundException("readme.txt文件未找到");
}
catch (System.IO.FileNotFoundException exception)
{
  log.WriteEntry("處理信息2", EventLogEntryType.Error);
}