============================================================================
==            xvs.library - The eXternal Virus Support Library            ==
==                  Copyright © 1997-99 by Georg Hörmann                  ==
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1. Legal Stuff
--------------
The  entire XVS software package is written and copyright © 1997-99 by Georg
Hörmann. Additional changes and updates during December 1999 and onwards are
copyright © 1999 Alex van Niel.

No parts of this package may be altered by any means (this includes editing,
reprogramming,  crunching,  resourceing  etc.),  except archiving.

The author  is  in  no  way  liable  for any changes made to any part of the
package, or consequences thereof  as  he  is in no way liable for damages or
loss of data directly or indirectly caused by this software.

Neither  fees  may  be  charged nor profits may be made by distributing this
piece  of  software.   Only a nominal fee for costs of magnetic media may be
accepted,  the  amount  of  DM  4/US  $3  shouldn't  be  exceeded for a disk
containing  XVS.   Non-commercial  CD  manufacturers  are allowed to put the
package  on  their compilations, too.  Outside a single machine environment,
you  are  not allowed to reproduce single parts of the package, but you have
to copy it completely.

Alex van Niel  has  the  permission  from  Georg  Hörmann  to update the XVS
package  and  make  any  adjustments  Alex van Niel  thinks  are  necessary.
Georg Hörmann can NOT be held  responsible  for  any  changes  Alex van Niel
made.


2. Installation
---------------
The xvs.library contains all the virus recognition and removal code that was
formerly included in VirusZ.  This step has been taken for one major reason:
VirusZ can be updated fast without releasing the whole package every week by
releasing a new library version.

So  simply  install the library in this archive to your LIBS:  drawer to get
100% protection against the latest viruses.

The  following  chapters contain information mostly for programmers who want
to  write  their  own  viruskillers,  so  you  can  skip this if you are not
interested!

3. Why Another Library?
-----------------------
As most of you may have noticed, I don't have much time at the moment to add
all  the  features you desire to my viruskiller VirusZ II/III.  On the other
hand,  there  are a lot of talented coders out there who might have the time
to  write  a  really  good  viruskiller  environment, but don't have all the
viruses  to add them or are not willing to torture themselves with analysing
all those little bastards.

That's  the  point  where xvs.library comes in.  With this library I want to
give  you a powerful tool to detect and eliminate all sorts of viruses.  All
you  have  to  do  (and that's still enough, believe me ;-) is to submit the
files, sectors or bootblocks you want to have tested to xvs.library.

In  other  words:   You design a GUI with all the features that are required
nowadays (ARexx, Locale, etc.) and I support you with my antivirus knowledge
of the last 7 years!!

Certainly  VirusZ will be developped further-on in the near future, but it's
always good to have some new rivals that give you new inspiration ;-)

Note from Alex van Niel:
Offcourse, developement for VirusCheckerII will also continue. With
VirusCheckerNG, the  xvs.library  will  replace  the  brain file. Offcourse,
all  bug  reports  and  new  viruses  should now be sent to me instead of to
Georg.

4. Features
-----------
Currently xvs.library offers you the following functions:

a. Detect bootblock viruses and install clean bootblocks instead.
b. Detect manipulated disk sectors and repair them if possible.
c. Detect infected files and repair them if possible.
d. Scan all memory regions for active viruses and remove them if any.

This should be all you need to put up a complete viruskiller.  About further
functions you have to think yourself.

5. Hopes And Fears
------------------
I  thought  quite  a  long time about the release of XVS to the public as it
might  be  some  kind  of  'sudden death' to my own project VirusZ.  All the
antivirus  knowledge  of  VirusZ  has been exported to this library.  Anyone
with  just  enough programming skills can easily beat the features of my own
antivirus  program  by  using XVS.  But on the other hand, antivirus work is
always  some  kind  of  service to the public and shouldn't be overridden by
selfish  thoughts.   And  as  I won't be able to keep up that service in the
far future, I will at least give my support to the ones who follow me.

6. Author
---------
For bug reports, ideas etc. you can reach me at the following addresses:

Snail-mail:	Alex van Niel
		Billie Holidaystraat 116
		2551 WK Den Haag
		Netherlands

e-mail:		pinkie@dds.nl
