//ServiceMgr.cs:

AssemblyInstaller asmInstaller = new AssemblyInstaller(executableLocation, new string[] { "/LogToConsole=false" });
			Hashtable rollback = new Hashtable();

			if (CheckExistingService(serviceName))
			{
				return String.Format("The service {0} already exists!\n", serviceName);
			}

			try
			{
				asmInstaller.Install(rollback);
				asmInstaller.Commit(rollback);

				ConfigMgr.SetSetting("ExeLocation", executableLocation);

				return String.Format("Service {0} successfully installed! Service is pointing to: {1}\n", serviceName, asmInstaller.Path);
			}
			catch (Exception)
			{
				asmInstaller.Rollback(rollback);
				return "An error occured while installing the service! Rolling back changes..\n";
			}

//ServerServiceInstaller.cs:

[RunInstaller(true)]
	public class GameServerServiceInstaller : Installer
	{
		private ServiceInstaller m_gameServerServiceInstaller;
		private ServiceProcessInstaller m_gameServerServiceProcessInstaller;

		public GameServerServiceInstaller()
		{
			// Instantiate installers for process and services.
			m_gameServerServiceProcessInstaller = new ServiceProcessInstaller();
			m_gameServerServiceProcessInstaller.Account = ServiceAccount.NetworkService;

			m_gameServerServiceInstaller = new ServiceInstaller();
			m_gameServerServiceInstaller.StartType = ServiceStartMode.Automatic;
			m_gameServerServiceInstaller.ServiceName = ServerOptions.ApplicationSetting("ServiceName", "DOL");

			Installers.Add(m_gameServerServiceProcessInstaller);
			Installers.Add(m_gameServerServiceInstaller);
		}

		public override void Install(IDictionary stateServer)
		{
			Context.Parameters["assemblyPath"] = Assembly.GetEntryAssembly().Location;

			base.Install(stateServer);
		}