In the Revit.ini file, settings in the [Install] section can affect whether custom settings are propagated to users.
This setting is generated when the software is installed or a deployment is created. The values of this setting in UserDataCache\Revit.ini and the User Profile version of the Revit.ini must be the same. In general, you should not change the value of this setting.
When you install Revit to multiple computers from a deployment, each computer will have the same InstallGUID value that was created when the deployment was created. If your organization uses roaming profiles, use the same deployment when installing the software on multiple computers that will be used by the same users. Otherwise, their custom settings will not be available on all computers that they use.
This setting is added to Revit.ini only after you perform an Add/Remove, Repair, or Reinstall operation for the software. The values of this setting in UserDataCache\Revit.ini and the User Profile version of the Revit.ini must be the same. In general, you should not change the value of this setting.
You can add this value to UserDataCache/Revit.ini to change one or more Revit.ini settings for users across your organization. For instructions, see Update User Settings Across an Organization.
Example:
[Install] Update=Appframe|Theme;Documentation|HelpBrowser;Documentation|OnlineHelpLocale