Because some old habits die hard
How I Play Old PC GAMES in 2021 (Win98 / WinXP / Windows 10)
There have been many improvements with the most recent versions of Windows. Unfortunately, along with these improvements, support for running certain DOS programs has been lost. For those who are attached to their old DOS software, there is hope.
You can still run your favorite DOS programs with an open source DOS emulator called DOSBox. DOSBox is designed to run DOS games, but will also run many other DOS applications. In fact, there's a long list of DOS programs that have been tested on DOSBox. In addition to Windows, DOSBox will run on Mac OS X, Linux, and FreeBSD.
Navigate to the DOSBox.com downloads website and select the Windows link. You will be automatically redirected to the SourceForge.net website to download the installer. If you have any problems with the download, click the direct link or click the mirror link to choose a different download site.