Sony VAIO computers preinstalled with Windows Vista cannot start in MS-DOS mode. It is not recommend to MS-DOS, and operations are not guaranteed.
• Sony does not support MS-DOS.
• Sony does not support MS-DOS in Windows Vista.
• In VAIO product packages preinstalled with Windows Vista, it does not include MS-DOS.
• SONY does not recommend the use of MS-DOS software and associated equipment.
• Sony does not provide a MS-DOS start disk.
• The Command Prompt in Windows Vista is not MS-DOS.