In the Revit.ini file, settings in the [Documentation] section control where Revit accesses help files, and how it displays help.
Specifies the preferred web browser for viewing online help.
Type = integer
Valid values: 0 = Use your system default browser (default). 1 = Use Microsoft Internet Explorer.
Specifies the location of offline help files.
Type = string
Default = C:\Program Files\Autodesk\Revit Content <release> <language>\Program\Help\<locale>\WBH\index.html
Specifies the locale (language) to use for online help.
For example, even though you installed the French version of the Revit software, you can specify that you want to access the English version of the online help.
Type = string
Default = the language code for your installed software, such as enu or fra
Determines whether Revit accesses online help or offline help when you press F1 or click a Help button from the software.
Type = integer
Valid values: 0 = offline help. 1 = online help (default)
[Documentation] UseHelpServer=1 OnlineHelpLocale=enu HelpBrowser=0 [Documentation] HelpBrowser=1 UseHelpServer=0 HelpFileLocation="M:\RevitResources\Help\en-US\WBH\index.html"