Windows Longhorn was the codename for the operating system that became Windows Vista, developed in the mid 2000s before Vista launched in 2007. Its test builds included a fresh set of system sounds for hardware events, including this USB fail chime for unsuccessful device connections. Clips from those builds circulated among Windows enthusiasts long after release, and the sound later spread as a compact error sound for memes, edits and software parodies where a polite system ding says more than a loud alarm ever could.