ResX Translation Helper has the following features:
- Online Tool ( = no need to install anything. Runs on every browser)
- Authentication (only registered users are allowed to translate)
- Easy to use (for both administrator and translators)
- Automatic backup (each file will be copied to a backup folder as soon as the translator makes any modification)
- Automatic FTP upload (nothing to do for the admin after translation. Additionally translator could check his changes on the fly!)
- Free to use 🙂
It’s an open source solution hosted on http://resx.Codeplex.com. You will also find installation details there. Additionally you might have a look at the article published in german magazine dotnetpro 05/2011.