The phenomenon of Chinese character garbling can be roughly divided into four categories: web pages, text, documents, and file garbling. The first category is caused by the incompatibility between Traditional Chinese Big Five (BIG5) used in Hong Kong and Taiwan and Simplified Chinese (GB2312) used in mainland China; The second category involves garbled display in Win9X/Win2K systems (menus, desktops, prompt boxes), which is due to improper settings in the font-related sections of the Win9X/Win2K registry; The third category includes garbling in places where various applications (including games) are supposed to display Chinese characters. The causes for this are more complex, involving reasons similar to the second category, and could also be due to Chinese dynamic link libraries being overwritten by English ones; The last category is email garbling.