This plugin is applied to Eudora 3.0/4.0. As you know, there are some different Chinese character encoding and decoding methods used in the Internet. In those, two most popular code-sets are GB code and HZ code. This plugin will convert GB coded messages to HZ code, or vice versa.If you find '~{' and '~}' characters in your Chinese messages, it means the text is encoded in HZ code.