Ask HN: Examples of desktop software with 20+ years of longevity?

Some desktop apps have been developed for 20+ years and still running and available. There are not many desktop apps with longevity (and rewrites). Examples of apps still available: – Quarx : QuarkXPress (1987) – Corel : WordPerfect (bought by Corel in 1996), CorelDraw (1989) – Xara : Xara (1994) – a Windows vector illustration app still in development – […]