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PsL Monthly 1996 November
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pkzip204.exe
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ADDENDUM.DOC
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1993-02-01
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19KB
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518 lines
ADDENDUM to PKZIP 2 Manual
--------------------------
This file contains the most up-to-date information, additions and
changes to the PKZIP version 2 manual.
AUTHENTICITY VERIFICATION FEATURE
---------------------------------
The Authenticity Verification information you receive from PKWARE
will include two AV Serial Numbers and one checksum. The Serial
Numbers and checksum include BOTH letters and numbers. ALL
LETTERS are LOWER CASE, with the exception of the letter L. The
letter L will be printed in upper case to avoid confusion with
the number one.
After both Serial Numbers are entered using the PUTAV.EXE, the
program will return a checksum value. This checksum must match
the one provided by PKWARE. If the checksums do not match, then
the installation was not performed correctly and PUTAV.EXE should
be run again to ensure that the Serial Numbers and Name were
entered correctly.
If you run PUTAV.EXE and you encounter the error, "WRONG VERSION
OF PKZIP.EXE", verify that you are running PUTAV on the
REGISTERED version of PKZIP.EXE.
AVEXTRA.TXT
-----------
With the PKZIP 2 Authenticity Verification feature, additional
text can be displayed on subsequent lines following the
verification message. An ASCII text file named AVEXTRA.TXT is
created containing the additional text you want displayed. When
the AVEXTRA.TXT file is in the current directory when you use the
"PKZIP -!" option, PKZIP will add this text to the .ZIP file and
PKUNZIP will display it after the normal Authenticity
Verification message. The Authenticity Verification feature is
available only to registered users of PKZIP.
SELF-EXTRACTING FILES ACROSS MULTIPLE DISKETTES
-----------------------------------------------
PKZIP 2 has the ability to compress a large .ZIP file across
multiple diskettes.
Self-extracting files CAN NOT span multiple disks. This would
make the PKSFX code extremely large.
A simple batch file can be created that would uncompress across
multiple diskettes. All that would be required is to have the
batch file follow this procedure:
1. Create a batch file called install.bat
2. Edit install.bat and in that file have the following line:
pkunzip -d a:program c:\test
This batch file would create the directory C:\TEST on your
computer and then unzip the file called PROGRAM.ZIP into the c:\test
directory. PKUNZIP will prompt the user to enter the diskettes
in the extraction order.
PKCFG.EXE
---------
* PKCFG.EXE is only included in the registered version of PKZIP.
PKZIP.EXE can have many of its features configured with a
configuration file called PKZIP.CFG. This configuration file can
be located in either your current directory, a directory
specified with the environment variable PKZIP.CFG, or in the
directory that PKZIP.EXE is located. PKZIP.EXE will search for the
configuration in each location in the order listed above. This
means that you may have a default configuration file that is
easily overridden by using a configuration file in either of the
first two locations. Any option that is set in the configuration
file may be overridden from the command line. The configuration
file may be created manually with a text editor.
The PKCFG.EXE program will look for an existing configuration file
in the same locations and order that PKZIP.EXE would look. If the
PKCFG.EXE program finds an existing configuration file it will load
it. The existing configuration values will be shown in the place of
the defaults. A list of options will be displayed on the screen,
and a highlighted cursor indicates the option that you can
modify.
PK SAFE ANSI
-----------
* PKSFANSI.COM is only included in the registered version of PKZIP.
Another program included with registration of PKZIP 2 is called
PKSFANSI.COM. PKSFANSI is a terminate and stay resident program
that disables ANSI keyboard key Reassignments, thereby preventing
ANSI "bombs" embedded in any text file (such as README files) or
output by any program. Normally, ANSI sequences that redefine
the keyboard could be hidden inside ANY text file or program, and
could be executed completely unnoticed until it is too late.
PKSFANSI intercepts calls to the ANSI.SYS or other ANSI device
drivers, and filters out any keyboard reassignments, while
allowing other ANSI sequences through unaltered. If a keyboard
reassignment is attempted, PKSFANSI will intercept the sequence
and discard it. PKSFANSI will also BEEP to alert you that a
reassignment was attempted.
PKSFANSI requires less than 1K bytes resident RAM, and should
work with any ANSI driver, such as the standard ANSI.SYS driver,
NANSI, ZANSI, DVANSI, etc. Note that if you use a memory
resident ANSI driver, such as the DESQview DVANSI.COM driver,
PKSFANSI should be loaded after the ANSI driver is loaded.
Using PKZIP and DPMI
--------------------
If you experience difficulties when using PKZIP in a DOS window
under Windows, use the -) option to disable DPMI support. If
this eliminates the problem, you may default this option for
PKZIP by using the configuration file (see manual for details).
With PKUNZIP, this option may be set as an environment variable
(see below for details).
PKUNZIP as an Environment Variable
----------------------------------
PKUNZIP includes the ability to use an environment variable as a
continuation of the command line. An option, or number of options
may be specified by an environment variable. PKUNZIP will treat
the variables as if they were passed on the command line.
example: set PKUNZIP=-)
This example would disable DPMI usage.
Note that since the PKUNZIP environment variable is a
continuation of the command line; it will supersede any
preceding option on the command line.
Minimum DOS Requirements for SPANNING & FORMATTING
--------------------------------------------------
For PKZIP 2 to span multiple disks with a .ZIP file, DOS 3.0 or
greater is required.
To be able to format diskettes on-the-fly, DOS 3.2 or greater is
required.
PKUNZJR.COM & PKSFX Junior
--------------------------
When using PKUNZJR or PKSFX Junior, remember to end your output
path with a : or a \. Because the PKUNZJR and PKSFX Junior were
designed to be as small as possible, please note that they
perform minimal error checking.
CHANGE TO "MOVE" OPTION
-----------------------
When using the -m option in PKZIP.EXE PKZIP will now remove the
directories and subdirectories after the compression process has
been completed. This feature is turned on by default. If you
wish PKZIP not to remove the directories/subdirectories, use a
-m- option to disable this feature.
PKNOFASTCHAR= Environment Variable
---------------------------------
This tells PKZIP/PKUNZIP to use the slow DOS 1.x/2.x character
output function calls rather than the 'DOS Fast Character
Output' function. This option is designed for compatability with
TSR's or BBS doors etc. that do not intercept the DOS Fast
Character Output function.
ERROR MESSAGES
--------------
This is an addendum to the ERROR MESSAGES found in the manual.
PKZIP: (E[19-23] and E29) Insufficient Memory
PKZIP: (E26) DOS 3.0 or later needed to span disks
PKZIP: (E26) DOS 3.2 or later needed to format disks
PKZIP: (E28) Destination for .ZIP file is same as temporary file
PKZIP: (E28) Source and destination is the same
PKZIP: (W07) Warning! Bad System Track
PKZIP: (W08) Warning! Can't write FAT
PKZIP: (W09) Warning! Can't write root directory
PKZIP: (W10) Warning! Can't write boot sector
ZIP2EXE: (E09) Can't create ouput file
ZIP2EXE: (W01) Warning! The file already exists, overwrite (y/n)?
PKSFX: Warnings numbers are the same as PKUNZIP
[9-18,20,