This wad fixes the "Player in special sector" error for Doom v1.666 and
Episode 3 Mission 9.  Let me first say that this *IS* a map error, *NOT* a
bug in the Engine.  This same error was in Doom v1.2, but the 1.2 engine
ignored the bad sector flag (explained below).  With the enhancements to the 
Doom v1.666 engine, it now crashes when it finds the MAP error.

Id has expressed to me that they will NOT be releasing a fix for this map
bug, and also told me that I could distribute the fixed map.  (I still have
the E-Mail from american@idsoftware.com if you don't believe me)

This is by no means an "Official" patch for the error in E3M9, and be warned
that if you are playing a multi player, both people MUST use this Patch WAD.
This Patch has been tested, and should work normally.  Nothing New has been
added.

The problem with the sector giving the error was that it was tagged to a 
linedef on the bridge over the lava.  That linedef had property #37 which
tells the engine to lower the sector to the height of the NE sector and 
change the sector properties to that sector.  Where this becomes a problem
is the sector in the large room is already the lowest sector in the room.

I saw no reason for the that sector to have a tag, so I just deleted the tag
using Deu v5.21 GCC.

To use this patch, type "doom -file 1666e3m9.wad"  of course you only need
to use this when you plan on playing E3M9.

Alternatly, you can make this change to your DOOM.WAD file by using DEU v5.21
Use the following process:
(1) Ensure that your DEU.INI file points to the correct DOOM.WAD
(2) Start DEU by typeing "deu -pw 1666e3m9.wad"  (Deu should tell you that
        it updated the entries corresponding to E3M9)
(3) Use DEU's build option to recreate the entire 11Meg WAD file.  Type
        "B DOOMTMP.WAD"  (You should write to a new file)
(4) Rename the DOOM.WAD to DOOMBAK.WAD  (save this file until your sure that
        your new DOOM.WAD works properly)
(5) Rename DOOMTMP.WAD to DOOM.WAD

If you find problems with this Patch Wad, please contact me and NOT id, as 
they probably won't help you anyway.

                                        -Paul Hermann

Internet:  hermann@poly-eng.uakron.edu