DirectUpdate is a dynamic DNS updater that runs as a NT service with remote (web) administration. It integrates with many of the free or pay DNS services and you can automatically update multiple DNS accounts as soon as your IP changes. In addition, the program can perform local actions upon IP change, including FTP upload, application launching, service(s) restarting and email notification. It runs as a service, even when no user is logged in.
DirectUpdate runs on all the Windows platforms, and received the 'certified for Windows 8' logo!