I am trying to create a windows service in JScript and am confused. I have
two files, SimpleService.JS and SimpleServiceInstaller.JS as follows:

SimpleService.JS
/------------------------------------------------------------------------
import System;
import System.ServiceProcess;
import System.Diagnostics;
import System.Timers;

class SimpleService extends ServiceBase
{
  private var timer : Timer = null;

  function SimpleService()
  {
     this.CanPauseAndContinue = true;
     this.ServiceName = "SimpleService";
     this.timer = new Timer();
     this.timer.Interval = 1000;
     this.timer.add_Elapsed(OnTimer);
  }

  protected override function OnStart(args : String[])
  {
     EventLog.WriteEntry("Simple Service started");
     this.timer.Enabled = true;
  }

  protected override function OnStop()
  {
     EventLog.WriteEntry("Simple Service stopped");
     this.timer.Enabled = false;
  }

  protected override function OnPause()
  {
     EventLog.WriteEntry("Simple Service paused");
     this.timer.Enabled = false;
  }

  protected override function OnContinue()
  {
     EventLog.WriteEntry("Simple Service continued");
     this.timer.Enabled = true;
  }

  function OnTimer(source : Object, e : ElapsedEventArgs)
  {
     EventLog.WriteEntry("Hello World from SimpleService!");
  }
}

ServiceBase.Run(new SimpleService());
/------------------------------------------------------------------------

and SimpleServiceInstaller.JS
/------------------------------------------------------------------------
import System;
import System.Collections;
import System.ComponentModel;
import System.Configuration.Install;
import System.ServiceProcess;

public RunInstallerAttribute(true) class SimpleServiceInstaller extends
Installer
{
   private var serviceInstaller : ServiceInstaller = null;
   private var serviceProcessInstaller : ServiceProcessInstaller = null;

   public function SimpleServiceInstaller()
   {
       serviceInstaller = new ServiceInstaller();
       serviceInstaller.ServiceName = "SimpleService";
       serviceInstaller.DisplayName = "Simple Service";
       serviceInstaller.StartType = ServiceStartMode.Manual;
       this.Installers.Add(serviceInstaller);

       serviceProcessInstaller = new ServiceProcessInstaller();
       serviceProcessInstaller.Account = ServiceAccount.LocalSystem;
       this.Installers.Add(serviceProcessInstaller);
   }
}
/------------------------------------------------------------------------

I compiled both of them in the following manner:
jsc /t:exe SimpleService.js
and
jsc /t:exe SimpleServiceInstaller.js

And then installed the installer with:
installutil SimpleServiceInstaller.exe

On examining the Services.MMC, I see the service "SimpleService" in there
but whenever I attempt to start the service I get the dialog "Could not
start the Simple Service service on Local Computer, Error 1053: ..."!

Can someone please tell me what am I doing wrong and how do I fix it?

What confuses me is how the Installer knows which executable to look into
for the implementation of the service - should either the service or the
installer be written as a package and referenced by the other and if so
which one? OR should one of them be written as a DLL (which one)? OR should
they both be part of the same package? In short, where is the link between
"serviceInstaller.ServiceName = "SimpleService";" in the Installer and
"this.ServiceName = "SimpleService";" in the Service?

Thanks,

Harjit S. Batra