You are downloading the AirShare XAP file v1.1.2.0 for Windows Phone. AirShare is a free Music App: AirShare is a full featured UPnP/DLNA Control Point. Play easily your music, videos and images on your network (DLNA TVs, XBMC, WMP, ...), from your external. You can now download the offline XAP package file to install & try it.
Download Locations for AirShare 1.1.2.0 XAP file
Package File
Please Click Here > to retrieve available package files for AirShare.
Please be aware that the AirShare XAP file you are to download is hosted on the Microsoft Store CDN server. You can read more about AirShare or get it on Microsoft Store.
To try to install it manually from an SD card, you should choose one of the server location above to get the offline AirShare XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.