I quote from the read me PDF that came with Cubase 7. Page 9
Plug-in compatibility with older Cubase projects.
Some old plug-ins are no longer part of the Cubase
installation namely: HALion ONE, Monologue, Embracer and
Plug-ins from earlier Cubase versions are provided for
you on the Steinberg website in case required for
Steinberg. Where is this. I have a project with extensive use of Tonic with automation. I need this plugin and it seems I’m not the only one. What alternative do we have?