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2ZIP: .ARC/.MD/.PAK/.ZOO to .ZIP Conversion Utility Version 2.1\89.03.09
1. 2ZIP What does it do?
2ZIP allows you to convert files archived in several other compression
methods to the new PKZIP format.
2. 2ZIP Disclaimer
2ZIP is provided "as-is". I make no claim that it is suitable for any
particular purpose. It may, in fact, not work at all. I've had some
pretty good luck with it, but you might not.
2ZIP is written in Microsoft C 5.1. It doesn't use any special
interrupts or MS-DOS features to perform the task at hand. The source
code for 2ZIP is available for a fee (and a non-disclosure agreement must
be signed).
3. 2ZIP Credits
2ZIP 2.1 was written in Microsoft C 5.1.
2ZIP was inspired in some small way by a program called ZIPPER. ZIPPER
does basically what 2ZIP does, but only for .ARC and .PAK files. ZIPPER
would also like you to pay a shareware fee.
2ZIP payment is a little different. See the "2ZIP payment" section of
this document (coming right up).
If you've used ZIPPER, you may also think it is annoying (whistling
windows, etc.). As Chuck Forsberg likes to say, "...if you're looking
for a modem video game, Pro-YAM is not for you..." Likewise, if you're
looking for a PKZIP conversion video game you should probably look
elsewhere.
This is NOT meant to imply that I have anything against the person (or
persons) who wrote ZIPPER. I simply dislike their program.
Many and big thanks to the folks who helped me test 2ZIP. Among them:
Paul Waldinger @ Sound of Music PCBoard, Phil Brushaber @ The Ad Game
BBS, John Souvestre, and Mark Stein @ The Laguna Hills BBS. Many thanks
to these folks.
4. 2ZIP Payment
2ZIP is free. I'm offering it as a service to promote what I believe is
a superior compression program (PKZIP/PKUNZIP). I would certainly
appreciate your comments on 2ZIP, and I would probably be willing to add
an enhancement or two if it's needed, (and if you say I'm a nice guy for
doing it).
If you use 2ZIP a lot and really feel like you owe me cash, send a
donation to my address in the $2 to $5 range. Please do not send more
than five dollars in any event. Any money collected will be used to
expand my toolbox for other public enhancement utilities like 2ZIP.
If you've got tons and tons of money, I would recommend registering the
shareware programs you use, like PKZIP/PKUNZIP, DSZ, GT Power, Etc.
THESE authors depend on your support, I don't.
2ZIP: .ARC/.MD/.PAK/.ZOO to .ZIP Conversion Utility Version 2.1\89.03.09
5. 2ZIP Minimum Requirements
MS/PC DOS 3.1 or higher
512k RAM (2ZIP might work with less: I make no guarantees)
Enough disk space to hold two copies of the archive being processed, and
all of the files it contains.
NOTE:
Versions of 2ZIP prior to 2.0 may create incomplete ZIP files if
sufficient disk space is not available. 2ZIP v2.0 will detect disk space
problems and will not remove any archives that can't be fully processed.
Any failed conversion will appear in the 2ZIP_BAD.LOG file, explained in
depth below.
Son of NOTE:
Make sure you have a relatively large FILES= setting in your CONFIG.SYS
file. FILES=20 is probably good enough. Archive -> ZIP convertors can
take a lot of file handles because they create child processes.
6. 2ZIP Installation
First, you must have a copy of each de-compression program you are
currently using on your system in one of your DOS search directories.
This is probably already the case, but if you want to be extra sure 2ZIP
will work in all cases (at least all cases it was designed for), copy
PKUNPAK.EXE (v3.61), PAK.EXE (v1.60), ZOO.EXE (v1.41), MDCD.EXE and
PKZIP.EXE (Current version) in your DOS search directory. I'm using my
\UTIL directory for this purpose.
If you currently use PKXARC (or some other unarchiving program), you must
rename or copy it to PKUNPAK.EXE for 2ZIP to work correctly.
Next, you should set up a WORK/LOG directory using the 2ZIP environment
variable. Place a line in your AUTOEXEC.BAT file which reads
SET 2ZIP=C:\UTIL
(or whatever you want your WORK/LOG directory to be). This directory
_must_ exist. If it doesn't, 2ZIP won't work correctly.
A subdirectory will be created under this WORK/LOG directory called
TMP$KMS, so it is perfectly O.K. to have other files in this directory.
The TMP$KMS subdirectory will be removed after each 2ZIP session.
You may also want to set up a default compression variable using the
2ZIP_C environment variable. Compression defaults to "-eb4 -ea4" you may
wish to change it to -eb4 -ea2, for instance. To do this, include a line
in your AUTOEXEC.BAT file which reads:
SET 2ZIP_C=-eb4 -ea2
Make sure not to enter blanks before or after the '=' sign (i.e. SET
2ZIP_C = -eb4 is NOT correct). If you don't know what this means, don't
worry--2ZIP will work just fine if you don't set this variable.
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2ZIP: .ARC/.MD/.PAK/.ZOO to .ZIP Conversion Utility Version 2.1\89.03.09
7. 2ZIP Usage
2ZIP is fairly easy to use (once you've performed the above installation
steps). To convert a single archive to the ZIP format you would type:
2ZIP file.arc
2ZIP TEST.ARC (to convert TEST.ARC to TEST.ZIP)
Wildcards are allowed, so to convert all .ARCs to ZIP format:
2ZIP *.ARC
And multiple command-line files are allowed, so to convert all archives,
all PAK files, and FOO.ZOO you would type:
2ZIP *.ARC *.PAK FOO.ZOO
Pretty straightforward, huh? While 2ZIP is processing you'll see
something like this:
2ZIP .ARC/.MD/.PAK/.ZOO to .ZIP conversion utility! Version 2.1
Copyright (c) 1989, Kelly Stanonik All Rights Reserved.
TEST1.ARC Un-archiving. ZIPing. Setting Date and Time. Done.
TEST3.ARC Un-archiving. ZIPing. Setting Date and Time. Done.
TEST5.PAK Un-PAKing. ZIPing. Setting Date and Time. Done.
TEST6.ZOO Un-ZOOing. ZIPing. Setting Date and Time. Done.
LZ.MD Un-MDCDing. ZIPing. Setting Date and Time. Done.
TEST7.MD Un-MDCDing. ZIPing. Setting Date and Time. Done.
Finished! 6 files converted.
Note that 2ZIP sets the date and time of the resulting .ZIP file to the
original date and time of the .ARC, .PAK, .MD, or .ZOO file. This should
make you sysops out there happy.
2ZIP automatically selects PKZIP's highest compression ratio for both
ASCII and Binary files unless it is overridden with the 2ZIP_C
environment variable. This can result in a longer compression time, but
decompression will be faster and file sizes will be smaller.
8. 2ZIP Batch File Usage
2ZIP can be used quite easily from a batch file. In addition to the fact
that the output from 2ZIP can be redirected using the standard DOS ">"
redirection symbol, it will also return a DOS error level if a fatal
error occurs.
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2ZIP: .ARC/.MD/.PAK/.ZOO to .ZIP Conversion Utility Version 2.1\89.03.09
9. 2ZIP Switches
2ZIP supports the following switches (case IS significant). Switches can
be placed anywhere on the command line (i.e. 2ZIP -l *.* _or_ 2ZIP *.* -
l):
-l
Full logging enabled. This switch causes 2ZIP to place a log entry in
the 2ZIP.LOG file (located in the directory pointed to by the 2ZIP
environment variable) for each file it processes. Note that the
2ZIP_BAD.LOG file will still be maintained regardless of the status of
the -l switch.
-z
Causes the contents of the COMMENT.ZIP file (located in the directory
pointed to by the 2ZIP environment variable) to be used as a ZIP comment
for each file that 2ZIP processes. For instance, if you place the
following line in your COMMENT.ZIP file:
* A product of the KMS BBS! *
and 2ZIP a bunch of files (2ZIP C:\UPLOAD\*.* -z) with the zip comment
switch, 2ZIP will place "* A product of the KMS BBS! *" in each file
processed.
If you try to use the -z switch, and the COMMENT.ZIP file doesn't exist,
2ZIP will abort with a fatal error.
10. 2ZIP Error Log
If, for some reason, 2ZIP is unable to create a .ZIP file, the word
"Error." will replace "Done." in 2ZIP's output, and a line will be added
to the 2ZIP_BAD.LOG file (located in whatever directory you set the 2ZIP
environment variable).
This log file contains the name of the original file and the target .ZIP
file, and the date and time of the attempt.
2ZIP uses a special directory notation which allows it to specify when an
error occurred in an archive within another archive. If 2ZIP encountered
an error in an archive within an archive, the log entry might look like
this:
C:\UP\(THISARC.ARC)\FRED.ARC failed Sun Mar 05 00:21:37
This means that in the C:\UP directory, there is a file called
THISARC.ARC. _Within_ THISARC.ARC there is an archive called FRED.ARC
which 2ZIP had some trouble processing.
2ZIP does not delete the original file if an error occurs.
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2ZIP: .ARC/.MD/.PAK/.ZOO to .ZIP Conversion Utility Version 2.1\89.03.09
11. 2ZIP Bugs & Comments
Kelly Stanonik (KMS) Bix: kms
15737 Bluffside Ct. #155 CompuServe: 74730,77
Chino Hills, CA 91709 Home: (714) 597 5666
12. 2ZIP Versions
What program would be complete without a list of versions? A new one
perhaps? Well--I'd imagine so. 2ZIP is pretty new, but I've already got
a couple.
Version 1.1
This was the first release version of 2ZIP.
Version 1.2
2ZIP now converts .ARC files located within archives. Sorry, but 1.2
only converts one level deep (if you 2ZIP FRED.ARC, and FRED.ARC contains
BOB.ARC and SALLY.ARC, these files will be Zipped too. If BOB.ARC
contains SAMMY.ARC, though, SAMMY.ARC will remain SAMMY.ARC).
I guess my personal opinion is that if someone puts eight levels of
archives within an archive they deserve to convert it themselves. My
mind may be changed if folks think multiple level archive conversion
would be useful.
Version 1.3
2ZIP now recognizes the 2ZIP_C environment variable to specify the
default PKZIP compression. If this variable doesn't exist, 2ZIP defaults
to "-eb4 -ea4" otherwise, YOU be the judge. A sample setting might be
SET 2ZIP_C=-eb4
I've had pretty good luck with this, in fact. (This turns on full-
reducing compression for binary files, and uses shrinking exclusively for
ASCII files)
Version 2.0
This version turned out to be mainly a big beta test.
Version 2.1 (!)
This is a pretty hefty revision (hence the major number increase). 2ZIP
has been ported to Microsoft C 5.1 from Microsoft QuickBASIC. Error
checking has been beefed up, two switches (-l and -z) have been added,
and the log file format has been expanded and enhanced.
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