public void Start()
    {
        this.driverServiceProcess = new Process();
        if (this.user != null)
        {
            this.driverServiceProcess.StartInfo.UserName = user.Name;
            this.driverServiceProcess.StartInfo.Password = user.Password;
            this.driverServiceProcess.StartInfo.Domain = user.Domain;
        }
        this.driverServiceProcess.StartInfo.FileName = Path.Combine(this.driverServicePath, this.driverServiceExecutableName);
        this.driverServiceProcess.StartInfo.Arguments = this.CommandLineArguments;
        this.driverServiceProcess.StartInfo.UseShellExecute = false;
        this.driverServiceProcess.StartInfo.CreateNoWindow = this.hideCommandPromptWindow;
        this.driverServiceProcess.Start();
        bool serviceAvailable = this.WaitForServiceInitialization();

        if (!serviceAvailable)
        {
            string msg = "Cannot start the driver service on " + this.ServiceUrl;
            throw new WebDriverException(msg);
        }
    }

new ChromeDriver(userName, password, domain);

new InternetExplorerDriver(ieOptions, userName, password, domain);