Windows Vista Enterprise

This edition targets the enterprise segment of the market: it comprises a superset of the Vista Business edition. Additional features include support for Multilingual User Interface (MUI) packages, BitLocker Drive Encryption, and UNIX application-support. Not available through retail or OEM channels, this edition will get distributed through Microsoft Software Assurance (SA). Since Vista Enterprise classes as a benefit of Microsoft Software Assurance, it includes several SA-only benefits, including a license allowing the running of up to four virtual machines running a mix of Vista editions and versions, access to Virtual PC Express, and activation via VLK. Vista Enterprise supports up to two physical CPUs. 64-bit Enterprise supports 128 GB of RAM.