Parallels only works on Intel Macs, so no, this doesn't allow Windows sims to be used on non-Intel Macs. All of the major sims work fine on Intel Macs by the way, using BootCamp, so there's no need to limit yourself to AFPD if you have a Mac. But using BootCamp requires you to log out of OS X and reboot into Windows whenever you want to use your sim, which is inconvenient if you're like me and tend to have lots of windows open and don't usually shut down your computer. Using something like Parallels would allow you to run your sim without having to log out of OSX, provided you have sufficient RAM in your computer to run both OS's side by side. I would recommend having at least 1.5 GB in your computer for this to work well.