DirectUpdate - DirectUpdate is a dynamic DNS updater with many features.
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
Dynamic DNS client for Windows - It’s essentially a PAR‘ed up version of a slightly modified ddclient, packaged as a Windows service...
GRCs DNS Benchmark - DNS Nameserver Performance Benchmark
OpenDNS Updater - OpenDNS recommends that you use our client-side software to keep your dynamic IP updated for your...
namebench - Provides personalized DNS server recommendations based on your browsing history.