Parallels Desktop 3.0 for Mac - Old Version OpenGL 1.5 / DirectX 8.1 Support--Run supported games and 3D applications at native speed in Windows Open documents in Mac OS or Windows using any available Mac OS or Windows application Windows Start Menu Integration--Click the Parallels icon in the Dock to show the Windows Start Menu Run Windows and Mac OS applications in a single integrated environment, or mount Your Windows File System and access its files and folders directly from Mac OS Support for OS X Leopard--Full support for Apple's next generation operating system when it ships Run Windows and Mac OS applications in a single integrated environment, Or mount Your Windows File System and access its files and folders directly from Mac OS Support for OS X Leopard--Full support for Apple's next generation operating system when it ships Open documents in Mac OS or Windows using any available Mac OS or Windows application OpenGL 1.5 / DirectX 8.1 Support--Run supported games and 3D applications at native speed in Windows Windows Start Menu Integration--Click the Parallels icon in the Dock to show the Windows Start Menu