Not able to reinstall Rhino 2.04

[Feng]

I bought Rhino in 2005, then uninstalled for awhile. Now I want to reinstall it to use it on a new project.
Downloaded the demo installer from your site, copied the key file in the VST directory where Rhino is placed, but Rhino shows it is still unregistered.
Perhaps I forgot the right way to install the key?

Regards

[morelia]

You can turn your demo version of Rhino into a full version simply by copying this file into the Rhino installation folder

Seems you got it right . Is it the right key file though. Not from v1.x?

[Feng]

No, I'm sure I bought Rhino 2