You are downloading the AirPlayer+ XAP file v18.104.22.168 for Windows Phone. AirPlayer+ is a free and useful Music app: AirPlayer is one of the best apps for playing music on windows phone. And AirPlayer+ is an updated version which you will love with the first ... You can now download the offline XAP file to install & try it.
Download Locations for AirPlayer+ 22.214.171.124 XAP file
Note: To install it manually from an SD card, you should choose one of the server location above to get the offline AirPlayer+ XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.