Windows Odyssey was planned as business version of Windows NT.But its cancelled with Windows Neptune.It have same NT number (NT 5.5) with Windows Neptune.You can found documents of this build from here. Some Screenshots: File:Windows Odyssey Logon Screen.png File:Windows Odyssey Desktop.png File:Windows Odyssey Boot Screen.png File:Windows Odyssey Alternative Boot Screen.png Taken from BetaArchive