Airplay is synonymous with Mac. Its an app used to share your screen using AppleTV to stream your Mac’s desktop content. For a long time Windows machines have been left out of being able to use this technology. AirParrot now allows you to share your Windows Desktop with AppleTv. http://www.airparrot.com/ Its a app that can be purchased for $9.99 for a single user, or there is a multi-user license that is also available. This app will allow you to share Windows desktop, mirror your screen, and desktop extension.