You are downloading the YPO MayFair XAP file v220.127.116.11 for Windows Phone. YPO MayFair is a free and useful Social app: This application can be used for members of the MayFair Chapter to consult and sign up to chapter events, get directions and contact fellow ... You can now download the offline XAP file to install & try it.
Download Locations for YPO MayFair 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 YPO MayFair XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.