Include Ads in your Windows 8 Apps: XAML Based Windows 8 Apps
To include advertisement in your Windows 8 Apps (including the phone apps) see the article at:
https://msdn.microsoft.com/en-US/library/hh506371%28v=msads.10%29.aspx
For the walkthrough on using Advertisements in your XAML Based apps:
https://msdn.microsoft.com/en-US/library/jj157022(v=msads.10).aspx
You will find the Advertisements use more colors and images then the ones you used in Windows Phone.