Windows Millennium Edition, released by Microsoft in 2000 as the last system in the Windows 9x line, used a short orchestral startup sound to mark the moment the desktop appeared. Similar startup chimes from the Windows 2000 and Whistler eras are often grouped with it online because they share the same clean, early-2000s Microsoft sound. As those systems disappeared, the clip survived on soundboards and in nostalgia videos, where it instantly signals an older era of home computing without needing any explanation.