BCD is a TSR (Terminate and Stay Resident) CD-ROM drive emulator which will allow you to install and play most CD-ROM based games on a computer without the CD (or a CD drive). Has the widest compatibility between different DOS games.

This utility will allow you emulate a CD-ROM drive from a directory of files. It even lets you choose the label for the emulated CD-Drive. It will not read an ISO or other CD-image.

The process is simple when using BCD.

You first use the built-in DOS command SUBST to create a drive letter for your emulated CD-drive, let's say E: Then you run BCD on the newly created E: drive to make it a CD-ROM.

This allows you to create a startup script for your game to always mount the files and then subsequently dismount them after the game exits: