DOSBox provides a full DOS environment, but by default it does not have access to any of your Windows files and folders. Thus, before you can run a program in DOSBox, you must mount its folder ...

That tells DOSBox to treat the C:DOSGAMES folder as the root C: drive. To get to your new C: drive (or any drive, for that matter), simply type c: at the Z: prompt.

The DOSBox emulator lets you run your DOS games and software again. It's free and open source, so you won't have to pay just to use programs you already own.