Dec 212017
Checks for compressed executable files, and lists compressor used. Now recognizes compressor used for Norton Utilities 6.xx.
File CHK4360.ZIP from The Programmer’s Corner in
Category Utilities for DOS and Windows Machines
Checks for compressed executable files, and lists compressor used. Now recognizes compressor used for Norton Utilities 6.xx.
File Name File Size Zip Size Zip Type
CHK4COMP.DOC 6233 2389 deflated
CHK4COMP.EXE 15345 14794 deflated

Download File CHK4360.ZIP Here

Contents of the CHK4COMP.DOC file

CHK4COMP.EXE Ver. 3.6 (12-07-91) by John Land, Esq. (Patent & Copyright Law)

Shows which .EXE & .COM files have been compressed by PKLITE, LZEXE, DIET, AXE,
WINDOWS files & misnamed .EXE & .COM files. Output sortable by size, name,
date, or time, & is redirectable. Subdirectories can be looped through.

USAGE is: CHK4COMP {filespec} {/option}... [{filespec} can take wildcards].

Listing options (can use - or / to start each option):
/A -- All specified files (default is all .COM and .EXE files)
/C -- Compressed files only; suboptions:
/CL = Lzexe /CP = Pklite /CD = Diet /CU = execUtrx /CX = leXem
/CC = sCrnch /CS = Shrink /CA = Axe /CT = Tinyprog /CI = Ice
/CO = Optlink /CE = Exepack
/U -- Uncompressed files only (use /Un, n = 0{=},1,2,4 to list files > nK)
/M -- Misnamed .COM and .EXE files only (no wildcards accepted)
/E -- displays -1 for EXEPACK compression; EXEPACK testing NOT included
(speeds up testing)

Sort options:
/S -- by file Size (default) /D -- by file Date
/N -- by file Name /T -- by file Time

Other options:
/X -- eXclude display of all information except totals
/L -- Loop through subdirectories
/P -- Pause after each 25 lines
/V -- Verbose mode; shows file dates and times, plus the amount of
compression, as a percentage of file size, required to save one
more disk cluster (cluster size is determined from the disk
containing the listed files)
/R -- Redirect mode; suppress most banners and file info

NOTES: If the symbol shows in an information line for a file, then that
file is a WINDOWS .EXE file. If the symbol shows, then that
file APPEARS to use overlays (the calculated file size is not
equal to the actual file size). "X" for a PKLITE file means
"eXtra" compression; "L" means "Large extractor".

You can add up to 2 strings (a before file-list string and an after
file-list string) to redirected output. Just put the strings in
single quotes. Spaces are allowed.

EXAMPLE: CHK4COMP /u/r 'PKlite -o'

This will output a list of UNcompressed files preceded by
"PKlite -o", which can be redirected to a batch file (e.g., by
adding ">temp.bat").

With the /L option, all subdirectories under the current
subdirectory are searched, but banners are shown ONLY for those
subdirectories with files matching the initial search criteria
(e.g., compressed *.EXE files).

Searching for EXEPACK'd files is slow, because the tag bytes are
in non-uniform locations near the END of a file. However, the
default mode INCLUDES searching for EXEPACK'd files; use /E to
exclude them. Note also that CHK4COMP only searches the last 64
KB of large .EXE files for the EXEPACK tag bytes.

The ability to add a size parameter to the /U option gives you the
ability to limit display of uncompressed files to only those over
a certain cluster size. For example, on a normal hard disk over
10MB in size, the cluster size is 2,048 bytes. Usually there would
be no point in compressing a file that is already smaller than the
cluster size, since no space would be saved on the hard disk. On
the other hand, the cluster size on a 360 KB floppy is 512 bytes.

(use /Un, n = 0{=},1,2,4 to list
files > nK)

2.00 -- added checking for PKlite compression of .EXE files.
2.10 -- added checking for compression of .COM files by PKLITE,
fixed output for banner suppression (redirection /r)
switch, added option to search ONLY for LZEXE, PKlite, or
TINYPROG compressed files.
2.21 -- made checking for misnamed .EXE and .COM files automatic;
added checking for compression by DIET 1.00 and SEA-AXE;
distinguishes PKlite v. 1.00 from v. 1.03.
2.30 -- Corrected error in detecting different versions of PKlite;
added detection for LEXEM; conformed code to slight
differences required by Turbo Pascal 6.0.
2.50 -- Added detection for SHRINK; added page-pause option; added
ability to create text before and after redirected output.
2.60 -- Added sorting by date/time; added Totals only mode; revised
display of totals; added verbose mode to show file date and
2.70 -- Added detection for EXEPACK.
2.80 -- Added detection for EXECUTRIX; revised totals format.
2.90 -- Added detection for WINDOWS .EXE files.
2.95 -- Added detection for apparent overlay files.
2.97 -- Added totals for no. of WINDOWS and overlay files.
2.99 -- Added sorting by date OR time.
3.00 -- Added detection for SCRNCH; fixed minor bug in displaying
very small ( < 100 bytes) files after running CHK4COMP
twice in a row.
3.05 -- Added detection for ICE.
3.10 -- Corrected bug that wouldn't let CHK4COMP find any files
when checking a directory other than the current directory;
added detection for DIET 1.02; added ability to limit
display of uncompressed files to only those over a certain
cluster size.
3.20 -- Added calculation of amount of percentage of compression
required to save one more disk cluster (part of /V display).
3.50 -- Changed algorithm for determining version number of PKLITE
files; now also notes PKLITE files with extra compression.
3.55 -- Changed algorithm for determining major and minor version
number of PKLITE files; now also notes files having the
"large extractor" flag set.
3.60 -- Added detection for OPTLINK (used by NORTON UTILITIES).

 December 21, 2017  Add comments

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