Dec 252017
Check out files within archives for viruses using SCAN. Can also convert to other archive types.

Full Description of File

CheckOut V2.0. Converts archieves between
types, scans contents for virus. Many features

File CKOT20.ZIP from The Programmer’s Corner in
Category System Diagnostics
Check out files within archives for viruses using SCAN. Can also convert to other archive types.
File Name File Size Zip Size Zip Type
CHECKOUT.EXE 67856 33734 deflated
CKOT20.TXT 36520 11598 deflated
FILE_ID.DIZ 91 85 deflated
REG.TXT 1496 309 deflated
VALIDATE.COM 12197 8280 deflated
VALIDATE.DOC 2415 1041 deflated

Download File CKOT20.ZIP Here

Contents of the CKOT20.TXT file

CheckOut CheckOut
Copyright(c) 1989-93 Saturn Software Copyright(c) 1989-93 Saturn Software //////////// /////// ////// ////////
& John Bintz & John Bintz / //// /////
1519 Redwood 1519 Redwood //// ///////
Davis, CA 95616 Davis, CA 95616 ////// // /////

Results from Validate

File Name: checkout.exe
Size: 67,856
Date: 2-22-1993
File Authentication:
Check Method 1 - 4F7E
Check Method 2 - 004F

CheckOut is a virus protection program which is intended for use in
environments in which many program reside in archives such as ZIP or
LZH. It breaks open each archive and calls ViruScan by McAfee
Associates to check the components for viral problems. If desired, it
can then repackage the archive in a different format (e.g. convert
.zip to .arj). Both the filelists of opus/fido systems (files.bbs) as
well as PCBoard systems (DIRN, DIRNG) are converted in the process. It
will also work on a much simpler level where the user has an
occasional file to be scanned or re-archived.

- Handles nested files to any level.
- Desqview compatibility
- Optionally moves infected files or bad archives out of the way.
- Each file process is logged and identified as ok or bad in some
- Control is passed to named batch files at two times so that
comments can be added to the rearchived file, or files can be
added to the package, etc.
- Sensitive to read-only files.
- Processed files can be identified so the same directory can be
processed each night and only the new files treated.
- Single files can be specified for scanning, conversion or both.
- Can be operated either in an interactive mode with menus or from
the command line, or batch
- Menu mode can be used to write a batch file for subsequent use.
- Can be stopped anytime and pick up where it left off.
- Handles Opus and Fido files.bbs automatically
- Handles PCBoard DIRn and DIRng files automatically.
- Moves good files along a specified path
- Pathnames are maintained on archievers that handle pathnames.

The quality of the program as well as the feature set, has been
enhanced considerably by the beta testers who did everything that
could be expected and more. These include: Patricia M. Hoffman, 204/869,
Robert Michal, 386/451, and John Alton, 141/250.

Special thanks are due to Patricia Hoffman who independently tested
CheckOut with live strains of Jerusalem-B, AIDS, Alabama, Dark
Avenger, MIX!/Saratoga, Zero-Bug, 2930 (Traceback), Yankee Doodle,
3551/Syslock, and DataCrime II.

CheckOut is distributed as is. The author makes no representation
with respect to the fitness of the software for any particular purpose
and disclaims all warranties, expressed or implied. The author will
assume no liability for damages either from the direct use of this
product or as a consequence of the use of this software.

There is no staff employed for support purposes. If you have a
problem to report or features you would like to see implemented,
use the comment field on the registration form. All suggestions will
be evaluated for the next version.

CheckOut is distributed as shareware. This means you can evaluate
the product before you decide to register it. If you are using it
after a couple of weeks, you should register it. You can copy CheckOut
or any shareware program and distributed to anyone else, provided that
neither the program nor the documentation is altered and that you do
not charge a fee. Because there is no advertising, distribution, or
packaging cost, the price of a shareware program is often less than an
equivalent package sold through retail channels.
The registration form is provided in a separate file.


ViruScan or SCAN has become one of the most popular methods of
checking for various types of viruses. It will check boot sector and
each file potentially a virus carrier on a disk for the identifying
characteristics of hundreds of different virus types. For most users,
this is exactly what is needed. However, for people that operate a BBS
or make extensive use of BBS files, most executable files reside
within compressed or archived files and these can't be processed by

CheckOut makes it possible for SCAN to check the files within
archives. It operates by stepping through each file in a subdirectory,
looking at the extension, spawning the appropriate unarchive program
(I.e. LHARC, PAK, PKUNZIP, ZOO, PKUNPAK) and then spawning SCAN to
test each of the components of the archived file.

As CheckOut decompresses files and checks the components for viri,
a log is being written stating that the file has been checked and
whether or not it is found to be infected. Additionally, the file
itself can be marked as having been checked. If there is a problem
with the integrity of the archive, that fact is also noted in the log.

CheckOut will cause each EXE, COM, OVL, BIN, PIF, and SYS file as
well as each ARC, PAK, ZIP, LZH, ZOO, SDN, ARJ, in the specified
subdirectory to be scanned. The files which are not processed include
those with a different extension than those noted above. Most of these
will be data files, and since they are not executed, they can't do any
harm. However, self-extracting archives are potentially harmful and
are missed by both SCAN and the current version of CheckOut. CheckOut
sees the "EXE" and thinks SCAN will check it and SCAN thinks it did
check (it did, but for the wrong strings). The code exists now to
process self-extracting archives, but was not included in this version
because it can be outwitted fairly easily. It may be more muscular by
the time the next version is released.


Each program that is to be used must be located on the path. No
check is made, so if you don't use a compression type, you don't need
the uncompressor. In the case of SCAN, a check is first made of the
directory that CheckOut was executed from. If SCAN is located there,
that one is used in preference to a version somewhere else on the
path. The filenames that CheckOut might look for include:


These programs must exist on the path if they are to be used. They
can not be renamed, and they must be recent enough to handle the files
which will be processed. The version of SCAN must be 9.1V97 or
greater (SCANV97) because CheckOut uses features introduced in that
version. Attempts to use an earlier version will cause SCAN to display
a help screen rather than actually scanning.


A. Command Line Operation:

CheckOut can be operated from the command line, from a menuing
system, or from a batch file. Command line operation is intended for
simple tasks like scanning or converting a single file or group of

You can specify a single file for scanning, or group of files in
the current subdirectory, just by naming it. If the files to be
processed reside in a different directory, you must specify the path
to be scanned with a -s command.

CheckOut foo.arc Scan foo
CheckOut foo.arc -rz -v Put foo into a zip archive
CheckOut *.* Scan all files in current subdirectory
CheckOut -sx:\test\*.zip Scan all zip files on path

The parameters are defined below. For more complicated situations,
it is suggested that you invoke CheckOut with no parameters. That will
put you into a menuing system.

B. Operation from Menu:

If you invoke CheckOut with no parameters, the following menu will
appear. Within the menuing system there are error checks that are
resistant to mistakes and from the menuing system you can write a
batch file for subsequent unattended use.

Subdirectory to process -s K:\UPLOADS
Logging active -L yes
Log subdirectory -o K:\
Bad Files subdirectory -B K:\BADFILES
Move bad Archives -A yes
Move Infected files -I yes
Re-archive files -R no
Use Time stamp code -T ::
PCB DIRnn Files -P no
ViruScan active -V yes
Move Good files -G
Write Batch File W
Do It now D

The Options are explain below. The command beside the menu option
is the command to be used (and preceded with either "/" or "-") in a
batch file. That letter will be displayed in a different color or
otherwise enhanced on the screen display for most monitor types.

The screen you see may look different as a result of where you
execute the program. The default subdirectory to process is your
location at execution. The default log directory and badfiles
directory are off the root of the drive (physical or logical) that you
start from.

Subdirectory to process -s[filemask] Subdirectory to process -s[filemask]

This entry specifies the subdirectory and files to be processed.
The default is *.* in the subdirectory you specify, and the current
subdirectory if you don't specify any. However, you can include a
filemask identical to those used in DOS to select a smaller subset of
files. For example that mask can be a filename, *.arc, etc.

Unless you specify differently, each file (EXE, COM, OVL, BIN, PIF,
SYS, ARC, PAK, ZIP, LZH, ZOO, SDN) in the subdirectory specified will
be processed. SDN files are treated as the equivalent of PAK files

Logging active Logging active -L -L
Log subdirectory Log subdirectory -o -o

By default, CheckOut.LOG is left in the root directory of the boot
drive and looks as shown below. Each compressed file is given just
one log entry. If, for example, A.LZH had three executable files and
four embedded archives, it would have just one log entry and an
"infection message" would apply to any or all three files.

--testing D:\FILE\UP--------10/07/89
ABCDEFGH.LZH ok 10/07/89
A.LZH Virus detected
B.PAK Missing files on path
C.ZIP Problem in Archive
E.ARC ok 10/07/89

The command -L in a batch file stops logging and the -O
command provides a new path. On the menus, just hitting the carriage
return will toggle the L-variable from yes to no.

Bad Files subdirectory Bad Files subdirectory -B -B
Move bad Archives Move bad Archives -A -A
Move Infected files Move Infected files -I -I

If a badfile is found, a subdirectory called badfiles is created
and all infected files (as well as bad archive files) are relocated
there. A note is also made in the log, of course. At any time, you can
get rid of both the file and the subdirectory but there is no
possibility of it causing a problem just sitting there.

Another path is specified by the -B command. The -A and -I
are yes/no switches.

Re-archive files -RL, -RZ, -RA, -RP, -RO, -RJ

If the archives are to be converted to something else, this switch
is used to specify the target format as follows:

-RL convert all files to Lharc
-RZ convert all files to Zip
-RA convert all files to Arc
-RP convert all files to Pak
-RO convert all files to Zoo
-RJ convert all files to Arj

If you specify the -r switch, CheckOut will re-archive all files in
the specified format. Even if all files are already in the target
format, there are some advantages to rearchiving. The advantages are
all the files are put in the same archive format, you make sure that
nested archives are consistent, that is that there are no "arc" files
buried within a "zip" package; all comments advertising other boards
are eliminated; all files are maximally compressed; your own comments
can be added without negating the advantages of the time stamp and
there are a number of operations that you can perform automatically as
discussed below.

Nesting is performed as deep as you will want to go. All archives
within archives will be converted to the format specified. Since
CheckOut processes each level of nesting by going one level deeper
with subdirectories, the theoretical level is the length of the DOS
command line (120 characters) which would allow for something more
than 20 levels. It hasn't been tested that deeply, however, so there
might be some other DOS limitation which I am not aware of.

During conversion, a running total of starting size and finish size
is kept which is printed to both the screen and to CheckOut.log. These
totals should be accurate regardless of whether the conversion process
is completed or you exit prematurely with ^x.

Use Time stamp code -T

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