OpenCOR can be used on the following versions of Windows, Linux and OS X.
OpenCOR is supported on the 32-bit and 64-bit versions of Windows XP, Windows Vista, Windows 7 and Windows 8.
OpenCOR is supported on the 32-bit and 64-bit versions of Ubuntu 12.04 LTS (Precise Pangolin), 12.10 (Quantal Quetzal) and 13.04 (Raring Ringtail), but it might also work with earlier versions of Ubuntu, as well as some other Linux distributions, though additional system libraries might be needed for the latter.