Just downloaded the new version of Zviewer. It won’t connect with my domain name, but it will connect with my external IP address.
There is now a newer version of Zviewer for PC (V188.8.131.52) that allows access through a domain name. It can be downloaded here: http://www.zmodo.com/downloader/index/download/file_id/3850/
And you can check for future updates of software on this page: