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diff --git a/support/et/copyright b/support/et/copyright
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+ET and its auxiliary programs are copyrighted, but may be used without
+restrictions and the package may be redistributed in its entirety provided
+that this copyright notice is attached. Incorporation of the whole ET
+package in compilations of software, including those for which a fee is
+charged, is permitted, provided that redistribution is allowed. Those
+parts of the package for which source code is provided are made available
+under the terms of the GPL (GNU General Public License). Unfortunately,
+this cannot be done for the ET editor itself, since I do not own copyright
+to some of the source code, and therefore I cannot distribute all of the
+source code.
diff --git a/support/et/readme b/support/et/readme
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+      ET -- a TeX-compatible editor for text containing mathematics
+
+               (Copyright)
+               John Collins
+               Physics Department
+               Pennsylvania State University
+               University Park, PA 16802, USA
+
+               +1 (814) 863-0783
+
+               E-mail:  collins@phys.psu.edu
+
+
+The files in this directory are for the ET editor, which runs on MSDOS
+computers (including MS-Windows).  All the files are MSDOS files, and
+WHEN DOWNLOADING THEM YOU SHOULD SET THE FILE TYPE TO BINARY OR IMAGE,
+as appropriate for your version of ftp.  (This is usually done by the
+command binary in a UNIX version of ftp.)  The same remarks apply if
+you are subsequently downloading the files to an MSDOS computer from
+your mainframe or workstation (etc).  If you do not do this, the
+executable files, in particular, will be badly corrupted.
+
+Information on updates is contained in the file aaaupdat, if it
+exists.
+
+Information on copyright is in the file copyright.
+
+
+If you use this program, or have comments, let me know, preferably
+by e-mail to the address above.  Any further development of ET depends
+on user encouragement of the author!  However
+
+
+
+                   INSTALLATION
+                   ============
+
+To install ET on a hard disk, use the following procedure:
+
+       1.  Choose, and, if necessary, create a directory on the hard
+           disk to hold ET.  In the following, I will assume this
+           directory is C:\ET.  This directory will be referred to as
+           ET's home directory.
+       2.  Ensure that this directory is in the MSDOS path.  Use the PATH
+           command for this purpose.  Normally you will modify your
+           AUTOEXEC.BAT file to do this.  This will ensure that ET can
+           be run no matter what the default directory and drive are.
+       3.  Copy the files on the distribution disk to ET's home
+           directory. If the distribution disk is in drive A: and the ET
+           home directory is C:\ET, then use the command
+                        COPY A:*.* C:\ET
+       4.  Change default drive and directory to ET's home directory,
+           for example by the commands
+                        C:
+                        CD \ET
+       5.  To obtain the documentation, print out the file ETDOC.ET.
+           This contains full information on installing and running ET.
+           This printout can be obtained by the MSDOS command
+                        PRINT ETDOC.ET
+           or by the MSDOS command
+                        COPY ETDOC.ET PRN
+       6.  You now need to install ET itself.  First run ET by the command
+                        ET
+           Now set the correct home directory for ET.  This will ensure
+           that when you run ET it will know where to look to find the
+           help file and the default macro file.
+                (a) Use the F10 key to access the main menu.
+                (b) Press the 'O' key to get the Options menu.
+                (c) Press the 'L' key to get the Load File submenu.
+                (d) Press the 'H' key to set the Home directory.
+                (e) You will be prompted to enter the name (drive and
+                    directory) of the home directory.  The current
+                    directory's name will be given as the default (C:\ET
+                    in our example); if this is satisfactory, press the
+                    return key, otherwise type in the name, followed by
+                    the return key.
+                (f) Press the escape key to back up one level in the menu
+                    system.
+                (g) Press the 'S' key to save this and other options for
+                    ET in its executable file.  Thus the next time the
+                    program is run, it will look in the home directory
+                    for macro and help files.
+                (h) When ET has finished saving the setup, it will
+                    display a message.
+                (i) Press the escape key to remove the message.
+                (j) Press the escape key again to remove the Options
+                    menu.
+                (k) You should now be at the main menu.   Either type
+                    'F' followed by 'Q' to quit ET, or press the escape
+                    key to return to text editing.
+                (l) If you choose to stay in ET to explore it, note that
+                    the <F10> key gets you to the main menu when you are
+                    editing text, that the escape key backs you up one
+                    level in the menu system, and that the <F1> key will
+                    get you help.
+                (m) To exit ET, go to the File menu, and type 'Q' (for
+                    Quit).
+
+Experienced users will of course be able to modify these instructions as
+needed.
+
+Minimum files needed.  If you are short on disk space you may
+eliminate a number of the files.  At an absolute minimum you can have
+the ET.EXE, VESA16.BGI, ET.HLP, ET.MAC, ETTOTEX.EXE and TEXTOET.EXE.
+You will also need PRET.EXE if you plan to print in draft mode on a
+dot matrix printer.  You can eliminate ET.HLP if you can get by
+without online help; you can eliminate TEXTOET.EXE if you do not wish
+to convert TeX files to ET, and you can eliminate ETTOTEX.EXE if you
+do not plan to convert ET files to TeX on the computer you are using
+to do the editting.
+
+Whenever you configure ET to you different keystrokes for commands, you
+will need the ETINST.EXE file and ET.TXT.
+
+
+The contents of the distribution disk are:
+         README           This file
+         ET.EXE           The editor.
+         VESA16.BGI       Auxiliary file needed to handle graphics
+         ET.HLP           Help file for ET.
+         ET.MAC           Standard macro definitions.
+         ETDOC.ET         Documentation for ET.
+         ETTOTEX.EXE      Converts ET file to TeX.
+         TEXTOET.EXE      Converts TeX file to ET.
+         PRET.EXE         Prints out draft quality version
+                          of ET files on EPSON compatible
+                          printer.
+         PRET1.EXE        An improved version of the PRET
+                          program, for printing out draft
+                          quality versions of ET files.  It
+                          has not been completely checked out
+                          though.  Run PRET1 /HELP to see the
+                          new features.
+         GRKDRAFT.PPR     Downloadable printer font used
+                          by PRET, no longer essential.
+         KEYS.ET          When printed out using PRET, or
+                          displayed on screen using ET,
+                          shows the keyboard definition
+                          for the Greek/symbol font.
+         TEXCORR.ET       When printed out using PRET or
+                          displayed on screen using ET,
+                          shows the correspondence between
+                          the Greek/symbol font and the
+                          translation to TeX.
+         ETINST.EXE       Program to customize keyboard
+                          definition and help file for ET.
+         ET.TXT           Uncustomized help file.
+         ETMACS.TEX       Macros that let TeX directly
+                          handle ET files.
+         HW2.ET           Example of ET file that is used
+                          only for draft print out by PRET
+                          and not with TeX.
+         PAPER.ET         Example file: a physics paper using ET.
+
+         ET2TEXC.C        Source code in ANSI C for ET to TeX converter.
+                          Can be used to implement ETTOTEX on another
+                          computer.
+         ETDEFS.H         Include file for ET2TEXC.C
+         ETTRAN.INC       Include file for ET2TEXC.C
+         ET2TEXKR.C       Kernighan and Ritchie C source code for
+                          ETTOTEX -- old-fashioned C. Can be compiled
+                          with standard UNIX C compiler.
+
+         LATER.EXE        Program for comparing the date
+                          and time of two files.  Useful
+                          in batch files for to avoid
+                          overwriting a new file by an
+                          old file in conversions.  The
+                          command
+                                  LATER ?
+                          will explain how to use it.
+
+The program is copyrighted.  However, use and redistribution are
+permitted --- see the file copyright.  
+