How to use the Steam Library entry to launch Hexen's GZDoom source port. This process is not complicated, but it will be appreciated by those who prefer to organize and consolidate everything.
 

Requirements

These are the programs you will need:
 
 
GZDoom. This guide is not intended to show you how to set up GZDoom, or how to run the games. There are many guides that can help you.
 
 
A "Batch file-to-EXE file converter . You can search for "Bat to Exe Converter" on Google.
 
 
Notepad.
 
 
 

Process

1 – Create a Notepad file.
 
 
2 – Type this.
 
 

@ECHO OFF

START "" "YOUR PATH TO GZDOOM\gzdoom.exe" -iwad HEXEN.WAD

 
 
Your file path to GZDoom should be replaced with YOUR PATH TO GZDOOM
 
 
It's part of the formatting for that command. Make sure you include the two quotes with nothing between them after the START. (This is for the cmd.exe window title, but it won't be displayed, so it's useless to give it one.)
 
 
Look for more custom command line arguments to GZDoom.
Here – [zdoom.org]
 
 
 
3 – Save the notepad as "dosbox.bat", and close Notepad. Make sure the file ends with ".bat" and ".txt".
 
 
4 – Open the Bat To Exe converter program.
 
 
5 – Click on the three dots to right of the "batch File:" line and choose dosbox.bat
 
 
6 – Click "Compile” at the bottom. It will create an executable file called "dosbox.exe".
 
 
7 – Go to the Steam folder for Hexen and rename dosbox.exe to something else (I renamed it to "doxbox_REPLACED.exe"). It can also be deleted if you wish. You can delete all other files in this folder if the dosbox version is not being used.
 
 
8 – Copy, paste, or move your dosbox.exe file to the Steam folder.
 
 
9 – To stop Steam from "verifying" dosbox.exe before replacing it with the official executable, right-click your dosbox.exe file and check the "Read Only” box at the bottom. Steam won't have the ability to modify it.

 
 

 
 
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