Code snippet for blog from https://github.com/matthewrwilton/SeleniumExamples/blob/master/SeleniumExamples/Scaffolding/WebAppFixture.cs

WebAppFixture.cs

/// <summary>
/// Starts an IIS Express instance to run the ExampleWebApp.
/// 
/// Code heavily borrowed from Michael Whelan's blog post and Seleno (MIT license).
/// - Michael Whelan's blog post http://www.michael-whelan.net/testing-mvc-application-with-iis-express-webdriver/
/// - Seleno https://github.com/TestStack/TestStack.Seleno
/// 
/// This is an xUnit fixture class. Refer to https://xunit.github.io/docs/shared-context.html.
/// </summary>
public class WebAppFixture : IDisposable
{
    private const int WebAppPort = 59837;

    private readonly Process _webHostProcess;

    public WebAppFixture()
    {
        var key = Environment.Is64BitOperatingSystem ? "programfiles(x86)" : "programfiles";
        var programfiles = Environment.GetEnvironmentVariable(key);

        var iisExpressStartInfo = new ProcessStartInfo
        {
            WindowStyle = ProcessWindowStyle.Normal,
            ErrorDialog = true,
            LoadUserProfile = true,
            CreateNoWindow = false,
            UseShellExecute = false,
            Arguments = String.Format("/path:\"{0}\" /port:{1}", ProjectDirectories.GetWebAppDirectory(), WebAppPort),
            FileName = string.Format("{0}\\IIS Express\\iisexpress.exe", programfiles)
        };
        _webHostProcess = Process.Start(iisExpressStartInfo);
    }

    public void Dispose()
    {
        if (_webHostProcess == null)
        {
            return;
        }

        if (!_webHostProcess.HasExited)
        {
            _webHostProcess.Kill();
        }

        _webHostProcess.Dispose();
    }
}