Oldest GUI application that still runs on Windows 11 blog.enlyth.com

The author found that Windows 11 can run `CDPLAYER.EXE`, linked in a Windows NT 3.1 pre-release build on November 16, 1992, without modification; a small DLL can emulate a CD drive so it plays audio. An earlier 1993 FreeCell version also runs, while a 1985 Windows 1.01 Reversi game works only with the 16-bit compatibility tool otvdm.