Category in Advanced options dialog box
This advanced option is available only in the lang_<CurrentLanguage>.ini files.
This advanced option specifies the location of the help files in chm (Microsoft Compiled HTML Help) format. These help files are used for some components.
This advanced option is system specific and is read from environment files. Generally, there is no need to modify system-specific settings. Do not modify them if you are not an administrator.
Example
set XS_HELP_PATH=%XSDATADIR%\help\enu