Hello!
I have some questions about c5:
does Cubase 9 cover license for Cubase 5 ?
& where i can download Original Cubase 5 iso? I can’t find it in Steinbrg Download area & Ftp
thanks!
you misunderstood me 
I already own Cubase 9, i just need to know does license of Cubase 9 cover un-suported versions.
And, there is no question about switching to other daw.
The license covers all Cubase versions that use the USB key.
Check with one of the SB guys on the forum, they might have a link to a C5 iso.