Archive Maintainer :
Update to :
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Primary purpose : No levels included
Title : Doom 2 downgrade patch from V1.7A to V1.7
Filename : D217A17.BAT (D217A17N.BAT for EXE/WAD only)
Release date : 2008-11-25
Author : Martin Howe
Email Address : email@example.com
Web Site : http://www.martinsobservationpost.net
Other Files By Author : BOMBAY72 ........... play DOOM as a true predator!
BADGUYS ............ some spare monsters and items
CLEANWAD ...... personal upgrade of an old classic
PANPERIL .......... gubbin and widget patch panels
GOODGUYS ........ special-forces environment patch
SYMTHISE ...... a "bleeding heart liberal" pastice
Misc. Author Info : DOOMer since 1993; Webmaster, Committee Member and
Kitten List holder for the Bombay and Asian Self
Breed Club (www.bombaybreedclub.org), which is
itself affiliated to the GCCF (www.gccfcats.org).
Webmaster and Committee Member of the London Cat
Club (www.londoncatclub.org), which is also
itself affiliated to the GCCF (www.gccfcats.org).
Description : This patch will downgrade any legal and unmodified
copy of DOOM II V1.7a to DOOM II V1.7. There are
various DOOM2 upgrade patches from iD Software and
a downgrade patch by FunDuke from V1.9 to V1.666;
however, there is as yet no way to get plain V1.7
using these; this patch fixes that problem.
PLEASE REFER TO THE "INSTRUCTIONS" SECTION AT THE
END OF THIS TEXT FILE, ****BEFORE**** PROCEEDING!
Additional Credits to : iD Software (of course!)
FunDuke (for inspiration!)
wolfman (ZDoom Forums)
Ludek Cerny (http://www.lucersoft.com)
* What is included *
New levels : None
Sounds : No
Music : No
Graphics : No
Dehacked/BEX Patch : No
Demos : No
Other : Yes
D217A17.bat .... the patcher itself (batch file)
D217A17.txt .... copy of this text file
D217A17L.txt ... copy of GNU GPL licence file
D217A17M.exe ... GnuWin32 "md5sum" program
D217A17N.bat ... patcher for WAD/EXE file ONLY
D217A17N.txt ... md5 sums for WAD/EXE file ONLY
D217A17P.txt ... md5 sums for GT distribution
D217A17Q.txt ... md5 sums for iD distribution
D217A17R.txt ... md5 sum for DOOM2.EXE V1.7
D217A17S.txt ... md5 sum for DOOM2.WAD V1.7
D217A17T.exe ... GnuWin32 "touch" program
D217A17W.exe ... patch program for DOOM2.WAD
D217A17X.dll ... patch program for DOOM2.EXE
D217A17X.exe ... GnuWin32 "libintl3" library
D217A17Y.dll ... GnuWin32 "libiconv2" library
Other files required : A totally legal and UNMODIFIED copy of DOOM2 V1.7A,
Microsoft (R) Windows 2000 (R) or greater.
* Play Information *
Game : DOOM2
Map # : N/A
Single Player : N/A
Cooperative 2-4 Player : N/A
Deathmatch 2-4 Player : N/A
Other game styles : N/A
Difficulty Settings : N/A
* Construction *
Base : New from scratch
Build Time : A few hours
Editor(s) used : EditPlus, Ludek Cerny's Patcher
Known Bugs :
May Not Run With... : Linux, MAC OS, BeOS, MS-DOS, etc. (Requires NT)
Authors MAY use the contents of this file as a base for modification or
reuse. Permissions have been obtained from original authors for any of
their resources modified or included in this file.
You MAY distribute this file, provided you include this text file, with no
modifications. You may distribute this file in any electronic format (BBS,
Diskette, CD, etc) as long as you include this file intact. I have received
permission from the original authors of any modified or included content in
this file to allow further distribution.
* Where to get the file that this text file describes *
The Usual: ftp://archives.3dgamers.com/pub/idgames/ and mirrors
You can get Ludek Cerny's Patcher (freeware) from
You can get the GnuWin32 ports of Unix/Linux software for Win32 from
You can get FunDuke's DOOM2 V1.9 to V1.666 downgrade patch from
* Instructions *
YOU USE THIS SOFTWARE AT YOUR OWN RISK! PLAY NICE AND ALWAYS WORK ON A COPY
OF DOOM2 V1.7A, NEVER ON YOUR ORIGINAL. THAT WAY, IF ANYTHING GOES WRONG,
YOU DON'T LOSE YOUR ORIGINAL, IRREPLACABLE GAME. YOU HAVE BEEN DULY WARNED!
To actually do the patching:
1) Make a fresh install of DOOM II V1.7A. If your version is different, you
can upgrade to V1.9 via the official iD Software upgrade patches, if you
don't already have it, then use FunDuke's patch to downgrade to V1.666,
then use more of the official iD Software upgrade patches to upgrade
V1.666 to V1.7A. Or you may even have an original V1.7A CD, lucky you!
2) Because this has been cobbled together with freeware tools, don't expect
it to have advanced recovery logic, tallies of files missing, etc. It
will stop at the first thing it finds wrong! If you want only to patch
DOOM2.EXE and DOOM2.WAD and ignore all other files, use D217A17N.BAT
instead of D217A17.BAT. Also note that if you want a solution for Linux,
or even plain old DOS, gimme loads of money to buy RTPatch or whatever :)
3) Extract this archive into the new DOOM II V1.7A directory.
4) Start the D217A17.BAT batch file. If you want only to patch DOOM2.EXE and
DOOM2.WAD and ignore all other files, use D217A17N.BAT instead. The
CMD.EXE interpreter of Windows 2000 or greater is required; it MAY work
on 9X/NT4, but I have no way to test it.
5) Follow the instructions the batch file gives you.
6) That's it! If anything went wrong, please email me and tell me what!