| Version of the Windows NT operating system | |
| Developer | Microsoft |
|---|---|
| Working state | Historic, never released |
| Support status | |
| Cancelled | |
Odyssey (also known as NT6) is a version of Microsoft Windows that was being made in 1999 along with Neptune. It was merged in 2000 with Neptune to create Whistler.
Development of Windows Odyssey started alongside the consumer-based Neptune project in 1999 and was based on the Windows 2000 codebase.