You are downloading the Geburtstage XAP file v188.8.131.52 for Windows Phone. Geburtstage is a free and useful Social app: This App shows all your birthdays from Contacts, Calendar, Notefield and it show the Birthdays of VIPs and the birthdays of your friends from ... You can now download the offline XAP file to install & try it.
Download Locations for Geburtstage 184.108.40.206 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 Geburtstage XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.