HZ Decoders
The first HZ decoder was written in 1989 by the code's inventor for the Unix operating system.
The hztty program, also for the Unix operating system, was also among the first and one of the most popular HZ decoders. It deviates from the specification in that it will display the escape sequences (i.e., "~{" and "~}"), and it does not treat "~~" and "~" followed by a newline specially. This was probably to allow software which assumes one character to occupy one screen position (on a text screen) to function correctly without modification.
Support on Microsoft Windows came later, and a number of third-party "Chinese systems" support HZ. These systems may provide an option to hide the escape sequences.
Read more about this topic: HZ (character Encoding)