Investigating the oldest GUI application that runs natively on Windows 11, the author discovers FREECELL.EXE from 22-Feb-1993 — 33 years 8 months old and fully playable without modification. Windows 11 lacks NTVDM, so 16-bit apps are excluded.
Digging into early NT builds on the Internet Archive, CDPLAYER.EXE from Build 347, linked 16-Nov-1992 (nearly 34 years old), also runs. It avoids C runtime crashes by using the system's crtdll.dll, which Windows 11 still ships in SysWOW64. A small DLL (cdemu.dll) emulates a CD-ROM drive for audio playback.
For "cheating," otvdm enables REVERSI.EXE from Windows 1.01 dated 15-Nov-1985 to run on Windows 11, demonstrating remarkable backwards compatibility across decades.
Source: Hacker News · Summarized by HeadlinesBriefing