Category : Utilities for DOS and Windows Machines
Archive   : VEAL401.ZIP
Filename : VC103.DOC

Output of file : VC103.DOC contained in archive : VEAL401.ZIP
º º
º Documentation For VC - Version 1.03 º
º A Shareware Program Written By Craig Veal º
º º
º º
º I initially developed this program for my own personal use and the º
º rights to it are my sole property. This program is not and has never º
º been a public domain program. º
º º
º LIMITED permission is granted for your personal, NON-COMMERCIAL use º
º ONLY. º
º º
º This program may not be used in any commercial environment without my º
º WRITTEN PERMISSION. If you want to use it in a commercial environment, º
º simply send me a self addressed stamped envelope and I'll authorize º
º you to use this program as long as NO ONE, other than myself, MAKES º
º any profit from the sale of this program. º
º º
º SHARE this program with others! Craig D. Veal º
º 4734B Jacksonville Lane º
º Andrews AFB MD 20335 º
º Phone 301-599-1071 º
º º

The recent spread of "virus" programs makes some sort software protection
necessary. Here is the program I wrote to help protect my operating system
from being contaminated.

VC (Virus Check) will read the first two files on the drive you specify and
assume those are part of the boot record (that way the program doesn't have to
look for specific filenames). It also searches the "environment" for your
command processor (usually COMMAND.COM, but not always) and then read the file
specified in the environment.

After reading each file it does a checksum for each file and compares it
against what was found during the installation. If the two match everything
is probably fine. VC will end after verifying all three files associated with
the operating system and set an errorlevel of 0.

If the checksum for a file does not match the installed value, something is
DEFINITELY wrong! A WARNING message and the name of the first file where the
checksum did not match will be shown. The program will stop until you press a
key to acknowledge the warning, then it ends and sets an errorlevel of 255.

Here is how to use this program in your AUTOEXEC.BAT file:



Using the sample AUTOEXEC.BAT, VC would skip everything after VC if it finds a
checksum mismatch. Otherwise it will execute the rest of your AUTOEXEC.BAT.

VC must first be installed before it can be used. Run the program IVC.COM to
install VC. The syntax is:

IVC [drive]

[drive] is the boot drive you want checked each time it's used. If you don't
specify a drive, IVC will ask you for one.

  3 Responses to “Category : Utilities for DOS and Windows Machines
Archive   : VEAL401.ZIP
Filename : VC103.DOC

  1. Very nice! Thank you for this wonderful archive. I wonder why I found it only now. Long live the BBS file archives!

  2. This is so awesome! 😀 I’d be cool if you could download an entire archive of this at once, though.

  3. But one thing that puzzles me is the “mtswslnkmcjklsdlsbdmMICROSOFT” string. There is an article about it here. It is definitely worth a read: