@vincent-casper: I've wondered this, too. I looked for a clear statement about it on the web site or in the license, with no luck. I was looking into it because I wanted to install a 2nd copy on my laptop, to work on a project while I was on the road, away from my main desktop workstation. In desperation, I went ahead and did the install. It authorized fine, and SFPM works on both machines (I only ever run it on one of them; I don't know if it checks for this). Magix sure could be clearer about this!