系统关闭/重启时写入Windows服务日志

Question

The issue is that when host machine is restarted (Windows restart) or shutdown (Windows shutdown) nothing is being written to the log.

I have the following in a Windows Service:

protected override void OnStart(string[] args)
{
    eventLogUtility.WriteToEventLog("Service has Started.", EventLogEntryType.Information);
}

protected override void OnStop()
{
    eventLogUtility.WriteToEventLog("Service has Stopped.", EventLogEntryType.Information);
}

/// <summary>When implemented in a derived class, executes when the system is shutting down.
/// Specifies what should occur immediately prior to the system shutting down.</summary>
protected override void OnShutdown()
{
    eventLogUtility.WriteToEventLog("Service has Shutdown.", EventLogEntryType.Information);
}

• When the service starts, "Service has Started." is written to the log.

• When the service is stopped by me, "Service has Stopped." is written to the log.

PS Using .Net 4.5

Answer 1

It's probably because Windows Event Log service shutdowns before your service. You can solve it by making your Service depends on Windows Event Log using ServiceInstaller .

 ...
 ServiceInstaller serviceInstaller = new ServiceInstaller()
 serviceInstaller.ServicesDependedOn = new string [] { "EventLog" };
 ...

or with the visual editor by adding " EventLog " :