When you run a DOS program on a 32-bit Windows 10 OS, you will receive a popup to install NTVDM. If we talk about 64-bit Windows 11/10 OS, you cannot run DOS programs.

There have also been cases where users have tried to install a 32-bit program that worked on some Windows 10 machines but failed to install on other Windows 10 machines, or on all Windows 11, and ...