AirPlayer is not available for Windows but there are plenty of alternatives that runs on Windows with similar functionality. The best Windows alternative is Plex, which is free. If that doesn't suit you, our users have ranked more than 25 alternatives to AirPlayer and 12 are available for Windows so hopefully you can find a suitable replacement. Other interesting Windows alternatives to AirPlayer are Subsonic (Freemium), TorrenTV (Free, Open Source), Air Video HD (Paid) and Madsonic (Freemium, Open Source).
Plex bridges the gap between your computer and your home theater, doing so with a visually appealing user interface that provides instant access to your media. Plex can play a wide range of video, audio and photo formats as well as online streaming audio and video.
Select any video from the Videostream extension for Google Chrome and, using the Chromecast extension, play it on your Chromecast. It's fast and simple to use. Videostream supports subtitles, MKV, AVI, MP4, playlists, and more.
Access your music collection from anywhere in the world! Jamcast streams all your music to Android and UPnP/DLNA connected devices. Free 14-day trial. Virtual sound card records and streams all sound on your computer.
AudioStreamer is a free web-based audio streamer which gives you easy access to your music. It turns your PC in a streaming webserver. So you can listen to your music from everywhere and on any device(tablet, desktop, smartphone, ...) with a webbrowser..