Btprox

This 'Bluetooth Proximity Lock Utility' locks your computer when you walk away from it by locking on one of your Bluetooth devices connected to the the machine. This application may be your favorite script dismounting network drives, erasing those dirty files from the desktop or anything else.

http://btprox.sourceforge.net/

Amic Email Backup

Amic Email Backup is a handy software tool for Microsoft Windows based PCs designed to save emails, address books, settings, mail, and news accounts, message rules, blocked senders lists and signatures to a single, compact, compressed backup file that can be easily restored when necessary.

http://www.amictools.com/