This addon is a locale. You need to extract it to your /locales folder to install it. For more help with locales check out the help topic here.
This is the german formal language ("Sie-Anrede") translation of Vanilla version 1. This release is 1.1. If you find some mistakes please email me (a [dot] jindra [at] gmail [dot] com). Of course encoded in utf-8, the umlauts in TermsOfServiceBody are converted to HTML entities due to character set difficulties. Read the enclosed readme.txt to get rid of an error message in TermsOfService popup. Changelog: 1.1a find&replace is a bad thing if done case insensitive... 1.1 correct attribute names for ..Email.. in Context (thanks to jakob_r) 1.0 initial upload