YstokHelp Authoring Tool

Main window screenshot

YstokHelp is a freeware help authoring tool. It produces documentation, also called a help book, in the following formats:

The YstokHelp application includes the following.

System requirements


YstokHelp is freeware. Click this yhelp-m-n-bbb-en.exe or the link on on the left side bar to start downloading the self-extracting Setup Wizard. Your can run it immediately or copy to your computer for installing later.


  1. Start the Setup Wizard yhelp-m-n-bbb-en.exe and follow instructions on the screen.
  2. After reading the license agreement, click I Agree,
  3. Choose the Destination folder (C:\Program Files\ystok\Help.m by default).
  4. Select optional components, for example, sample files.
  5. Finally, click Install.

By default, the Setup Wizard creates a shortcut menu
  Start  All Programs  YstokHelp m.n


The documentation in English is incomplete for now.
The full documentation on YstokHelp is only available in Russian.

Source code

The source of the YstokHelp compiler (not including GUI) is available at http://lisp.ystok.ru/yhelp/.


To get a look-and-feel of a full-fledged help book in English, please browse the documentation on Ystok-URI.