The index (.hhk) file is an HTML file that contains the index entries (keywords) for your index. When a user opens the index in a compiled help file, or on a Web page, and clicks a keyword, the HTML file associated with the keyword will open.
|In most cases you will have only one index file in your help project. The index file is automatically created when you make a new help project using the Help Project Wizard .|
|About creating help|