How can I debug a windows service without Visual Studio? (on a client's machine)

I have a .net windows service I have developed and I am familiar with how to debug it using Visual Studio and attaching the debugger to the process. I also have the service writing to log files throughout its processing to assist in debugging. The problem I am running into is that when some users install my service and try to start it, it gives some generic error sa开发者_开发技巧ying it couldn't start. I have extensive logging in the start up processes in the service, but not a single one gets written even though I have one before anything else. Here is relevant service code:

static void Main(string[] args) 
    {
            ServiceBase.Run(new OSAEService());
    }

public OSAEService()
    {
        AddToLog("Service Starting");
        if (!EventLog.SourceExists("OSAE"))
            EventLog.CreateEventSource("OSAE", "Application");

        this.ServiceName = "OSAE";
        this.EventLog.Source = "OSAE";
        this.EventLog.Log = "Application";

        // These Flags set whether or not to handle that specific
        //  type of event. Set to true if you need it, false otherwise.
        this.CanHandlePowerEvent = true;
        this.CanHandleSessionChangeEvent = true;
        this.CanPauseAndContinue = true;
        this.CanShutdown = true;
        this.CanStop = true;
    }

protected override void OnStart(string[] args)
    {
        AddToLog("OnStart");
        //All the rest of my start up processes
    }

public void AddToLog(string audit)
    {
           lock (logLocker)
           {
               string filePath = _apiPath + "/Logs/" + _parentProcess + ".log";
               System.IO.FileInfo file = new System.IO.FileInfo(filePath);
               file.Directory.Create();
               StreamWriter sw = File.AppendText(filePath);
               sw.WriteLine(System.DateTime.Now.ToString("MM/dd/yyyy hh:mm:ss.fff tt") + " - " + audit);
               sw.Close();

           }

    }

Neither the "Service Starting" or the "OnStart" logs get written and I am sure it isn't a problem with permission for the log directory.

My question is this. Are there other ways to figure out what is causing my service not to start?

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Please check the Microsoft Visual Studio 2010 Remote Debugger to help you debug this service.