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PC-SIG Diskette Library (Disk #2316)
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Information about “LZE, LZESHELL, & COMTOEXE”
Can you imagine the space you could reclaim from your hard drive by
compressing all the .EXE files? Well, LZE, a public domain program,
compresses an .EXE file to almost half its size! This isn't
compression that must be decompressed to use the file; this is
compression of the code, so the program can be used as is.
LZE works with companion program COMTOEXE (which converts .COM files to
.EXE files) to make a powerful compression package.
LZESHELL interacts with LZE and COMTOEXE (all public domain programs)
to make those programs even better. LZESHELL changes .COM files to
.EXE files with one command. LZE then compresses the code of .EXE
files to regain space on your hard drive.
A companion program to LZE, COMTOEXE converts a .COM file into an .EXE
file that can then be compressed by LZE (LZE compresses the code of
.EXE files). With the combination of the two files, you now have the
ability to reclaim a sizable amount of valuable disk space from both
.COM and .EXE files.
ENGCOMEX.DOC
COMOTEXE.EXE v1.00 (c) Fabrice Bellard
This very simple program converts a COM (or BIN) file into an EXE file. In
fact, it does exactly the reverse of what EXE2BIN does. It is the ideal
complement of LZEXE, by the same author, since, thanks to COMTOEXE, LZEXE can
also compress COM files.
Syntax: COMTOEXE filename[.com] [filename2[.exe]]
where filename is the name of the COM file to be converted. The COM extension
is added automatically by COMTOEXE. The original COM file is NOT erased, for
safety sake. The 'filename2' is optional. If not added, the new EXE file will
have the same name.
N.B. Some COM files may not work correctly after the conversions, because some
DOS programs, such as COMMAND.COM, may need to know the exact structure of the
file, and the conversion to an EXE file does modify this structure.
ENGUPACK.DOC
Documentation for:
UPACKEXE.EXE version 1.00 (c) 1989 Fabrice Bellard
This program permits unpacking an EXE file packed with the Microsoft
EXEPACK, so it can be compressed with LZEXE. Otherwise, LZEXE can't
do as good a job because EXEPACK's compression of the relocation
table make it inacessible.
How to use UPACKEXE:
-------------------
syntax: UPACKEXE filename
The original file's extent is changed to .OLD. The new file is
called UPACKEXE.TMP and is renamed after treated with LZEXE.
EXE2COM.DOC
EXE2COM 1.00
By Chris Dunford/Cove Software
Purpose
-------
EXE2COM is a one-for-one replacement for the EXE2BIN program
that was formerly distributed with DOS. Beginning with DOS 3.3,
EXE2BIN has been moved to the disk that comes with the DOS
Technical Reference and thus is not available without extra
cost.
Usage
-----
Usage is identical to DOS's EXE2BIN except that the output file
extension defaults to COM rather than BIN (when was the last
time you saw a BIN file?).
Complete usage is:
EXE2COM [d:][path]file[ext] [d:][path][file][ext]
The drive and path of the first file default to the current
drive and path, if not specified. The extension of the first
file defaults to EXE, if not specified.
If the second file is completely unspecified, it defaults to the
same drive, path, and filename as the first, except that the
extension will be COM.
If the second file is specified but without an extension, COM
will be assumed (this is different from EXE2BIN).
The simplest (and usual) usage is simply:
EXE2COM file
which will take the named EXE file in the current directory and
convert it to a COM file in the same directory.
Operation
---------
EXE2COM runs the same way as EXE2BIN, with the following
exceptions:
1. The binary fixup option of EXE2BIN (IP=0, segment fixups
required) is not supported.
2. The EXE file checksum is not verified.
3. Error messages are more useful, and a warning is provided
if a COM file is created with an initial IP other than 100H.
Error Messages
--------------
These are EXE2COM's error messages. If one of these is seen,
the EXE file will not be converted and the errorlevel returned
by EXE2COM will be 1.
ERROR READING EXE HEADER
EXE2COM was unable to read the EXE file header from disk.
ERROR WRITING OUTPUT FILE
EXE2COM was unable to write the converted file to disk.
INVALID EXE FILE SIGNATURE
The first two bytes of an EXE file should be ASCII 'M' and
'Z'. This was not the case, and it's probably not an EXE
file.
EXE HAS RELOCATABLE ITEMS
In order to be converted to a COM file, an EXE file cannot
have any direct references to segments. For example, the
assembler instruction "mov ax,code" (where CODE is a segment
name) is a segment reference. One or more segment
references were found in the EXE file.
EXE HAS STACK SEGMENT
In order to be converted to a COM file, an EXE file cannot
have a stack segment.
EXE HAS NONZERO CS
In order to be converted to a COM file, an EXE file must
have a code segment that begins at offset 0 of the code
image in the EXE file.
IP NOT 0 OR 100H
In order to be converted to a binary file, an EXE file must
have an entry point of 0 or 100H within the code segment.
For COM files, the entry point should be 100H. For SYS
files (device drivers), the entry point should be 0.
PROGRAM EXCEEDS 64K
In order to be converted to a binary file, the total size of
the code to be loaded (including the PSP) must not exceed
64K bytes.
UNKNOWN ERROR
Internal error. Notify the author.
Warning message
---------------
EXE2COM has one warning message:
COM FILE, INITIAL IP NOT 100H
The entry point of all COM files should be 100H. If you are
creating a COM file an the entry point is not 100H, EXE2COM will
do the job but let you know that there is a potential problem.
Source
------
Source code should be included with this archive. Users are
encouraged to modify, improve, and/or correct the source for
EXE2COM and submit the new program to the author for
distribution.
The original EXE2COM executable file (date 4/17/87) was produced
using the provided source, except that the printf's were
replaced by a function from the author's library that produces
smaller EXE files.
Public domain
-------------
EXE2COM is hereby donated by the author to the public domain.
The program should not be sold at any cost by any for-profit
organization.
Author: Christopher J. Dunford
The Cove Software Group
PO Box 1072
Columbia, MD 21044
(301) 992-9371
CompuServe 76703,2002
EXE2COM.DOC
EXE2COM 1.00
By Chris Dunford/Cove Software
Purpose
-------
EXE2COM is a one-for-one replacement for the EXE2BIN program
that was formerly distributed with DOS. Beginning with DOS 3.3,
EXE2BIN has been moved to the disk that comes with the DOS
Technical Reference and thus is not available without extra
cost.
Usage
-----
Usage is identical to DOS's EXE2BIN except that the output file
extension defaults to COM rather than BIN (when was the last
time you saw a BIN file?).
Complete usage is:
EXE2COM [d:][path]file[ext] [d:][path][file][ext]
The drive and path of the first file default to the current
drive and path, if not specified. The extension of the first
file defaults to EXE, if not specified.
If the second file is completely unspecified, it defaults to the
same drive, path, and filename as the first, except that the
extension will be COM.
If the second file is specified but without an extension, COM
will be assumed (this is different from EXE2BIN).
The simplest (and usual) usage is simply:
EXE2COM file
which will take the named EXE file in the current directory and
convert it to a COM file in the same directory.
Operation
---------
EXE2COM runs the same way as EXE2BIN, with the following
exceptions:
1. The binary fixup option of EXE2BIN (IP=0, segment fixups
required) is not supported.
2. The EXE file checksum is not verified.
3. Error messages are more useful, and a warning is provided
if a COM file is created with an initial IP other than 100H.
Error Messages
--------------
These are EXE2COM's error messages. If one of these is seen,
the EXE file will not be converted and the errorlevel returned
by EXE2COM will be 1.
ERROR READING EXE HEADER
EXE2COM was unable to read the EXE file header from disk.
ERROR WRITING OUTPUT FILE
EXE2COM was unable to write the converted file to disk.
INVALID EXE FILE SIGNATURE
The first two bytes of an EXE file should be ASCII 'M' and
'Z'. This was not the case, and it's probably not an EXE
file.
EXE HAS RELOCATABLE ITEMS
In order to be converted to a COM file, an EXE file cannot
have any direct references to segments. For example, the
assembler instruction "mov ax,code" (where CODE is a segment
name) is a segment reference. One or more segment
references were found in the EXE file.
EXE HAS STACK SEGMENT
In order to be converted to a COM file, an EXE file cannot
have a stack segment.
EXE HAS NONZERO CS
In order to be converted to a COM file, an EXE file must
have a code segment that begins at offset 0 of the code
image in the EXE file.
IP NOT 0 OR 100H
In order to be converted to a binary file, an EXE file must
have an entry point of 0 or 100H within the code segment.
For COM files, the entry point should be 100H. For SYS
files (device drivers), the entry point should be 0.
PROGRAM EXCEEDS 64K
In order to be converted to a binary file, the total size of
the code to be loaded (including the PSP) must not exceed
64K bytes.
UNKNOWN ERROR
Internal error. Notify the author.
Warning message
---------------
EXE2COM has one warning message:
COM FILE, INITIAL IP NOT 100H
The entry point of all COM files should be 100H. If you are
creating a COM file an the entry point is not 100H, EXE2COM will
do the job but let you know that there is a potential problem.
Source
------
Source code should be included with this archive. Users are
encouraged to modify, improve, and/or correct the source for
EXE2COM and submit the new program to the author for
distribution.
The original EXE2COM executable file (date 4/17/87) was produced
using the provided source, except that the printf's were
replaced by a function from the author's library that produces
smaller EXE files.
Public domain
-------------
EXE2COM is hereby donated by the author to the public domain.
The program should not be sold at any cost by any for-profit
organization.
Author: Christopher J. Dunford
The Cove Software Group
PO Box 1072
Columbia, MD 21044
(301) 992-9371
CompuServe 76703,2002
FILE2316.TXT
Disk No: 2316
Disk Title: LZE, LZESHELL, & COMTOEXE
PC-SIG Version: S1
Program Title: LZE
Author Version: 0.91
Author Registration: None.
Special Requirements: None.
Can you imagine the space you could reclaim from your hard drive by
compressing all the .EXE files? Well, LZE, a public domain program,
compresses an .EXE file to almost half its size! This isn't compression
that must be decompressed to use the file; this is compression of the
code, so the program can be used as is.
LZE works with companion program COMTOEXEC (which converts COM files to
EXE files) to make a powerful compression package.
Program Title: LZESHELL
Author Version: 1.0
Author Registration: None
Special Requirements: None
LZESHELL interacts with LZE and COMTOEXE (all three public domain
programs) to make those programs even better. LZESHELL changes .COM
files to .EXE files with one command. LZE then compresses the code
of .EXE files to regain space on your hard drive.
Program Title: COMTOEXE
Author Version: 1.00
Author Registration: None
Special Requirements: None
A companion program to LZE, COMTOEXE converts a .COM file into an .EXE
file that can then be compressed by LZE (LZE compresses the code of .EXE
files). With the combination of the two files, you now have the ability
to reclaim a sizable amount of space from both .COM and .EXE files.
PC-SIG
1030D East Duane Avenue
Sunnyvale Ca. 94086
(408) 730-9291
(c) Copyright 1989 PC-SIG, Inc.
GO.TXT
╔═════════════════════════════════════════════════════════════════════════╗
║ <<<< DISK #2316 LZE, LZESHELL, & COMTOEXE >>>> ║
╠═════════════════════════════════════════════════════════════════════════╣
║ ║
║ For instructions on starting the program, type: COPY LZESHELL.DOC PRN ║
║ ║
╚═════════════════════════════════════════════════════════════════════════╝
(c) Copyright 1990, PC-SIG Inc.
Directory of PC-SIG Library Disk #2316
Volume in drive A has no label
Directory of A:\
COMTOEXE DOC 1079 12-24-89 4:39p
COMTOEXE EXE 5013 12-24-89 5:11p
ENGCOMEX DOC 851 2-26-90 6:09p
ENGLISH DOC 10636 3-11-90 4:24p
ENGUPACK DOC 526 3-11-90 8:19p
EXE2COM C 8971 4-17-87 4:45p
EXE2COM DOC 5135 4-17-87 6:45p
EXE2COM EXE 7906 4-17-87 5:55p
EXE2COM ZIP 12160 7-17-90 1:00a
INFOEXE EXE 5649 12-24-89 4:42p
LZESHELL DOC 5908 3-14-90 11:36a
LZESHELL EXE 16920 3-14-90 10:06a
LZEXE DOC 13092 12-24-89 5:15p
LZEXE EXE 12304 1-02-90 4:33p
LZEXE91 EXE 76544 8-28-90 8:27a
README ENG 614 3-11-90 4:26p
UPACKEXE DOC 1391 12-24-89 4:39p
UPACKEXE EXE 6873 1-02-90 4:39p
GO BAT 38 8-28-90 3:05p
GO TXT 577 1-01-80 6:52a
FILE2316 TXT 3035 9-17-90 4:42p
21 file(s) 195222 bytes
117760 bytes free