Parallels Desktop enables Mac users to run Microsoft Windows XP and Windows Vista on an Intel-based Mac without the need to reboot. The application uses virtualization to achieve higher speeds than older emulation technology, using Intel's processor to run Windows with its native instruction language. "Parallels Desktop's 100 percent compatibility with Leopard is key to achieving our goal of ensuring that our products are always ready to exceed the evolving needs of our more than 650,000 customers," said Serguei Beloussov, CEO of SWsoft -- the parent company of Parallels. "Apple is a very important partner for SWsoft, and we are pleased that our software has played, and continues to play, a key role in the continued success and growth of the Mac platform."