If you don't have administrative rights on your system, the application will crash with System.ServiceModel.AddressAccessDeniedException, saying that the HTTP could not register the URL. The error log will look like this:
![](https://static.packt-cdn.com/products/9781788399807/graphics/assets/6fad9ef9-32d3-467a-aa69-0113308ecbb3.png)
If you encounter this error, run the application under admin privileges. If you are running the application directly from Visual Studio, relaunch Visual Studio with admin privileges. To do so, right-click on the Visual Studio icon and click on Run as administrator.