Windows Odyssey
Cancelled operating system
Odyssey (also known as NT6) was the codename for a version of Microsoft Windows that was intended to succeed Windows 2000. It was cancelled sometime in 2000 and was merged with Neptune to create Windows XP.
Development
Development of Odyssey began alongside the consumer-based Neptune project in 1999 and was based on the Windows 2000 codebase. Features planned for Odyssey were the new Activity Centers as well as a new user interface. The version number of Odyssey is unknown, with some unverified sources claiming it as NT 6.0 or NT 5.5.
Due to high hardware requirements and because Odyssey and Neptune were built on the same codebase, Microsoft combined them to form a new product codenamed Whistler, for efficiency. No builds or versions of Odyssey were ever leaked or released by Microsoft as the product never left the planning stage.
Confidential documents from the Comes vs. Microsoft case do state that Odyssey was indeed under development.
“Windows Odyssey” enters the record as cancelled operating system. Crown Archives preserves that source wording while asking what Windows, Odyssey and Cancelled can confirm, complicate or overturn.
Why this record matters
“Windows Odyssey” is worth following because a concise public description often conceals a longer documentary argument. Here, Windows, Odyssey and Cancelled provides the most credible route into that argument.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Dec 15, 2025. The linked authority identifier is Q1193687. None of the 1 selected statements returned an explicit reference. The first chronological checks are 2000 and 1999.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Windows Odyssey”, its source revision and the description used here.
- Expand the search: follow Windows Odyssey primary sources, Windows Odyssey archive and Windows research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Windows Odyssey”?
- Which cited source is closest to the event, object or claim?
- Which institution is responsible for the underlying evidence?
Search terms from this dossier
This entry incorporates text from “Windows Odyssey” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.