Filename:  The output chm filename.  Do not use "#" and other special chars in the file name.

    Title:  The document title for displaying in the CHM viewer’s title-bar and the header section. 

      See 1 in the screenshot and quick reference for CHM Modern/Unicode CHM – Default template.

      See 1 in the screenshot and quick reference for CHM Modern/Unicode CHM – OfficeStyle template.

      See 1 in the screenshot and quick reference for CHM Modern/Unicode CHM – Simple template

    Create HHP file:  Creates the HTML Help Project files (.hhp file and related HTML files). 

      Do not use this option if you are not aware of HTML Help Project files.