This is the source for the setup program included with DOOM, final DOOM, strife, etc. Unzip with directories. John Romero wrote idsetup, so don't ask me questions about it... John Carmack Copyright (c) ZeniMax Media Inc. Licensed under the GNU General Public License 2.0.
id-Software/idsetup
This is the source for the setup program included with DOOM, Final DOOM, Strife, etc.
CGPL-2.0