Parallels, the worldwide leader in automation and virtualization software, announced that Parallels Desktop Upgrade to Windows 7 is available today at Parallels.com and Amazon, and will be available at retail stores starting on May 31. Parallels new software empowers PC owners to simply and safely upgrade from any edition of Windows XP or Vista to Windows 7, as well as keep and use their existing programs - even if they are not yet compatible with Windows 7. "Parallels Desktop Upgrade to Windows 7 provides a simple and safe solution for Windows XP and Vista customers who want to successfully move to Windows 7 but may be overwhelmed by the process," said Parallels CEO Serguei Beloussov. "Whether people are upgrading an existing PC or moving to a new PC, all of their programs, files and user settings are automatically moved. Even programs not yet compatible with Windows 7 still work, so theres no reason not to make the move."