Chartier, David (30 de noviembre de 2007). «Uncovered: Evidence that Mac OS X could run Windows apps soon». Ars Technica. Consultado el 3 de diciembre de 2007. «... Steven Edwards describes the discovery that Leopard apparently contains an undocumented loader for Portable Executables, a type of file used in 32-bit and 64-bit versions of Windows. More poking around revealed that Leopard's own loader tries to find Windows DLL files when attempting to load a Windows binary.»