[jcranmer]

MSVC appears to have dropped support for Windows 3.1 in 2003 and Windows 9x in 2008. It might still be able to generate support for Windows XP and Vista if you scrounge up an appropriate SDK, but the default CRT it builds with sure doesn't support those platforms.

[dmitrygr]

VS6 supports them all and results run on win11 as well. ISO is on archive.org, serial number is 111-1111111

enjoy

[seritools]

According to https://en.wikipedia.org/wiki/Microsoft_Visual_C%2B%2B#Histo..., the last version to support Win3.1 is VC++ 1.52 (which was shipped with VC++ up to version 4).

Unless you mean NT3.1 of course :^)

[dmitrygr]

I sit corrected. use VS4, also from archive.org, same serial. produced binaries will also work on win11