Windows Odyssey

Odyssey (also known as NT6) was the codename for a version of Microsoft Windows that was intended to succeed Windows 2000. The project was cancelled in early 2000 and later merged with Neptune to create Windows XP.^[2]

Odyssey

Version of the Windows NT operating system
Developer	Microsoft
Working state	Historic, never released
Marketing target	Business
Kernel type	Windows NT
License	Non-disclosure agreement[1]
Support status
Cancelled

Development

Development of Odyssey began alongside the consumer-based Neptune in 1999 and was based on the Windows 2000 codebase.^[2] Features planned for Odyssey were the new Activity Centers as well as a new user interface.^[2][1] The version number of Odyssey is unknown, with some unverified sources claiming it as NT 6.0 or NT 5.5.^[3]

Due to high hardware requirements and because Odyssey and Neptune would be based on the same codebase anyway, Microsoft combined them to form codename Whistler, for efficiency.^[2] No builds or versions of Odyssey were ever leaked or released by Microsoft as the product never left the planning stage.^[3]

Confidential documents from the Comes vs. Microsoft case do state that Odyssey was indeed under development.^[3]

See also

• List of Microsoft codenames