Hi Rhino: I am a QA engineer who works for Centric. We are one of your partners. 
GO RHINO + CENTRIC!
Is there a way to install Rhino 7 AND Rhino 8 on one client?
It would be really handy if I could do that…
John Taber
Hi John, I think that’s a great question for your engineers; we weren’t very involved in the integration of Rhino with Centric. I assume you’re running Windows Server under the hood; the only limitation would be licensing logistics, that I can imagine. Please let me know if there’s more details or specific problems you’re encountering that you think we can help with.
Hi Brian: Specifically I wanted to make sure that I could install Rhino 7 (which I have installed now) then install Rhino 8 and use EITHER for testing. In QA I need to be able to testing with both versions to support “our” customers. 
By your reply it sounds like you are suggesting that should work fine. I’ll give it a try next week and let you know how it goes.
John
Should work fine. Give it a try!
Works fine! Thanks.