Create a WCF web reference in Visual Studio 2008

In order to create a WCF web reference in Visual Studio 2008 you must choose the command Add Web Reference... under the Project menu.
This opens the Add Web Reference dialog:

In the dialog enter the http or the https based base address of the TcAdsService and press the GO button.
This will load the service meta data and create the needed client code.
After that the web reference will be listed in the Solution Explorer with the chosen namespace.