The files on this page accompany the Cubase Technique column in SOS June 2010 (www.soundonsound.com/sos/jun10/articles/cubase_0610.htm
), in which Mike Senior explored ways to achieve an effect akin to Waves Vocal Rider plug-in using Cubase 5s in-built plug-ins.
This is the audio example with the vocal rider effect dictating vocal levels.
This is the audio example without the vocal rider effect dictating vocal levels.
Mike has also kindly provided a Cubase project for download as a ZIP file, which should help to explain how this automation was achieved: