RoonSehv sounds like a great game and I love the Myst games.
But when I try to download the game from the links on page one
Norton says it is unsafe and deletes the download
How can I disable Norton just for this download ???

See if the Answer here works
https://answers.yahoo.com/question/index?qid=20100702211951AA4KXyG

I had the same problem, I right clicked the Norton logo (bottom ribbon right hand side) and disabled the Firewall and Smart protect and then it installed like a dream. I then restarted firewall and smart protect by right clicking again and turning them on and the game works fine. My only problem is that I'm too thick to get very far with the game, my lateral thinking is declining with age

Thank you so very much. Jenny100 and Monbron.
I was finally able to exclude the RoonSehv .exe file
And was able to install the game.
I also now know how to disable Norton
Thanks again
Bee

Hope you enjoy it.
It looks great for those who enjoy Myst games and aren't prone to motion sickness in games with 1st person 3D navigation.