12.3.4.5 Specifying Eclipse Help index properties in plugin.xml
To specify index properties in plugin.xml:
; IdxFilename = name for index file, normally index.xml
; UseIndex = No (default) or Yes (for newer releases of Eclipse)
See §12.4.5 Configuring index properties for Eclipse Help.
> 12 Generating Eclipse Help > 12.3 Configuring Eclipse Help manifest files > 12.3.4 Configuring the plug-in manifest file for Eclipse Help > 12.3.4.5 Specifying Eclipse Help index properties in plugin.xml