In the world of dynamic DNS, there are many different providers, and not so many clients that support those providers. Today I released a new version of TrueIP that allows you to specify custom URLs, fields, etc to GET/POST to. I personally use the dynamic DNS option with my domains for various dynamic hosts. I use Namecheap as my DNS provider at the moment, and it is fairly easy. They supply the information necessary to get set up and start using a dynamic updater on their website. I have not tested with any other providers, but from little research I have done, this should work with the majority of them. If you are interested in testing, please let me know your results, and I can update this post and the TrueIP page. Note: Please uninstall any previous versions of TrueIP, as this new version is installed in a new location to be consistent with other HazteK Software applications.
Happy IP tracking!