Windows Vista® for Embedded Systems is the next generation of Windows client, formerly known as Longhorn. Windows Vista Ultimate for Embedded Systems and Windows Vista Business for Embedded Systems will be available to OEMs.

Windows Vista Ultimate for Embedded Systems includes the following features: Virtual PC Express, Subsystem for Unix-based Applications, Support for simultaneous installation of multiple user-interface languages, Windows BitLocker™ Drive Encryption, Media Center Features, Tablet PC Features, Domain Join, Group Policy, EFS, Small business focused features, and Integrated Smart Card Management. Windows Vista Business for Embedded Systems includes the following features: Tablet PC Features, Domain Join, Group Policy, EFS, Small business focused features, and Integrated Smart Card Management.