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1992-08-08
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ZFV-ZIP Format View, Version 1.11 08-Aug-92
Allows you to see how a ZIP file is laid out on disk. Uses windowing to
step down to lower levels of detail. Displays header offsets and most field
values, including their interpretation. Admittedly, this program isn't for
everyone. For the curious and those with a need to know, however, this
program displays technical data on ZIP files that I haven't seen in any
other program. New: Switch to set level of filtering for ZIP files.
Configuration file for default switches. Updated for the Super-fast Deflate
compression algorithm.
Contents:
=========
Purpose
Display
Syntax
Switches
Configuration
Purpose:
========
I developed Zip Format View for my own use, but make it available to anyone
else who might be interested.
ZFV is a free program.
Display:
========
The program attempts to sense the type of display used and adjust color
appropriately. However, if the user has a color graphics card, but no color
monitor, the display may be improved by using the DOS command "MODE BW80".
Conversely, if you do have a color monitor, but the program displays in
"black and white", try using "MODE CO80".
Alternatively, two switches are available from the command line to force
black-and-white and color modes. See "Switches" below.
EGA/43- and VGA/50-line modes are supported. At program startup, an attempt
is made to detect the actual number of lines on the screen, up to a maximum
of 50, and to adjust the display accordingly.
Syntax:
=======
Usage: ZFV [switches] [filespec]
If no extension is specified for "filespec", ".ZIP" is assumed. If a valid
filename is specified unambiguously, the .ZIP file is immediately displayed.
Either specifying "filespec" using wildcards, or specifying a drive or
directory name causes a scrollable directory window to pop up. Simply
typing the program name is the same as specifying "*.ZIP".
Examples: ZFV c: <- current directory of drive C:
ZFV d:\ <- root of drive D:
ZFV \download <- download subdirectory off root
Switches:
=========
/BW Black-and-White mode. Provided as an alternative to using DOS's
"MODE BW80" command.
/Fx Where 'x' represents 0/1/2/3, as follows:
F0 - don't filter (fastest)
F1 - check only for files with the .ZIP extension (default)
F2 - same as F1, but do a thorough check of .EXE files
F3 - check all files for valid ZIP files (slowest)
Either '/' or '-' may be used to specify switches.
Entering an invalid switch causes the program to display a brief help screen
then exit.
Examples: ZFV /h
ZFV -?
Configuration:
==============
An optional configuration file containing user-selected default switches may
be created or edited with any editor or word processor which can save pure
ASCII text files. This file should be named "ZFV.CFG" and placed in the
same directory from which ZFV.EXE is loaded (DOS 3.0 and above).
Switches, including switch options, may either be separated by spaces or
placed on separate lines.
Incompatible switches used on the command line will override switches
included in ZFV.CFG. Switches are evaluated from left to right on the
command line.
A sample ZFV.CFG file is included in the distribution archive for ZFV.
After extracting the contents of the distribution archive, ZFV.CFG may be
deleted if ZFV's defaults are satisfactory.
--
Raymond T. Kaya
P. O. Box 1436
Honolulu, HI 96806
CompuServe: 71230,2500
GEnie : R.KAYA1