Document! X supports Unicode text throughout, supporting the creation of help content in any language supported by Windows.

If you are developing help content in a latin character set or are not generating HTML Help 1.x output, you do not need to make any changes to default settings. If you are developing help content in a non-latin character set and want to build HTML Help 1.x files you should set the Language from the dropdown list in the Locale editor.

There are several issues you should bear in mind when developing help content in a non-Latin language (e.g. Russian, Japanese, Chinese etc.).

1. The default Template font may not provide the best support for your chosen language. You can use a custom stylesheet to override the default template font with one providing better support for your chosen language.
2. If you are compiling to an HTML Help 1.x help file, make sure you correctly define your chosen Language in the Project Locale editor. Because the HTML Help 1.x compiler and viewer do not support Unicode for Full Text Search, defining the Language in the Build Profile instructs Document! X to appropriately encode the output in the correct character set therefore enabling full functionality in the generated HTML Help 1.x file.
3. HTML Help 1.x does not fully support languages containing differing character sets (e.g. containing both Latin and non-Latin content).