You are downloading the AirShare XAP file v220.127.116.11 for Windows Phone. AirShare is a free and useful 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 ... You can now download the offline XAP file to install & try it.
Download Locations for AirShare 18.104.22.168 XAP file
Important Notice: Now Due To Unspecified Limitations, You Can Not Use The Offline XAP File To Install It Any More.
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.