You can run EQ on a Mac either through Bootcamp, which is free and provided by Apple, but required you to purchase a copy of Windows to install on a separate partition.... or you can install Windows in Parallels or Fusion (neither are free)and install EQ to that. I personally prefer the latter option, as both Parallels and Fusion run on the Mac desktop seamlessly, whereas Bootcamp requires you to shut down the computer and reboot into Windows.