activating older versions of cubase LE

Hi, Thank you for the answer.
I have entered the activation code and the basic FX suite seems installed into my drive. But then when I enter the serial number to install the software, it says that the serial number is not valid.

what I mean is that in the registration page after entering the download code and the serial number (mandatory), it says that the serial number is not valid.

The soft eLicenser with the basic FX Suite Rev.2 has been registered.
What I don’t understand is how to procede from here to install the software. Is this Basic FX Suite referring to Cubase AI?

Hi,

The Basic FX Suite is part of the TOOLS installation of your Audio Device.