About This File
This is the individual IWAD file for the shareware version of Doom. It is the latest version available.
This file was taken from a fresh install of the Doom shareware release.
The shareware come with the first episode "Knee-Deep in the Dead".
Note that this file is meant to be used with a source port of the game. How to Install the file will vary depending on the source port.
Details (and a download link of the original shareware release) can be found on the Doom wiki page.