Dns Jumper - DNS Jumper is a portable freeware App which makes changing your DNS settings as easy as clicking a button , it is the world's first IPv6 supported Dns tool
NetSetMan - Are you tired of changing your network configuration on your laptop every day?
Public DNS Server Tool - Public DNS Server Tool is a small utility for changing the DNS servers in Windows XP, Vista, 7 and...
TCP/IP Manager - Designed to help computer users keep track of their network configuration in different locations.
namebench - Provides personalized DNS server recommendations based on your browsing history.
Fast IP Changer - IP Changer is a free, fast and easy way to change your IP address, DNS or WINS. It's small, simple and build for windows...and most importantly, it works really well!