Tom's Hardware on MSN

Tech sleuth claims to have found the oldest GUI application that still works with Windows 11

A technology enthusiast claims that the oldest GUI application that still runs on Windows 11 is CDPLAYER.EXE from November ...
Ars Technica

Converting a fortran mainframe program to a Windows executable...

We have a simple program written in Fortran which runs on a mainframe. The program takes a text file containing a group of coordinates as input, compares the contents of the file to several data files ...