Advanced ZIP Password Recovery 3.52
============================================================
(c) 2001 ElcomSoft Co.Ltd (V.Katalov, A.Malyshev, I.Golubev)


Contents
--------

  Introduction
  Requirements
  Known bugs and limitations
  Technical support
  Registration
  Copyright and license
  Where to get the latest version


Introduction
------------

This program (Advanced ZIP Password Recovery, or simply AZPR)
can be used to recover the lost password for a ZIP archive. At
the moment, there is no known method to extract the password
from the compressed file, so the only available methods are
"brute force", dictionary-based and known-plaintext attacks.

Well, there are a lot of programs like this around, but
all of them have their own "pros" and "cons". Here is a brief
list of AZPR's advantages:

- The program has a convenient user interface
- The program is very fast: up to fifteen million passwords per
  second (on Pentium III)
- The program can work with archives containing only one 
  encrypted file (at about the same speed)
- Self-extracting archives are supported
- The program is customizable: you can set the password length
  (or length range), the character set to be used to generate
  the passwords, and a couple of other options
- You can select the custom character set for brute-force attack
  (non-English characters are supported)
- Dictionary-based attack is available
- The "brute-force with mask" attack is available
- The maximum password length is not limited (in registered
  version)
- Very fast known-plaintext attack is available
- No special virtual memory requirements
- You can interrupt the program at any time, and start from the
  same point later
- The program can work in the background, using the CPU only 
  when it is in idle state

The next versions will have much more useful features, of
course.


Requirements
------------

- Windows 95 (any version), Windows 98, Windows ME, Windows NT 4.0,
  Windows 2000 or Windows XP running on Pentium CPU
- 4 megabytes of RAM
- about 1 megabyte of hard disk space


Known bugs and limitations
--------------------------

- If the archive contains only one encrypted fileand it is "stored"
  (without compression, just with encryption) -- the performance might
  be lower than expected, especially on large files, because decrypting
  the whole file is required.
- If the archive contains two or more encrypted files, the
  program assumes that all of them are encrypted with the same
  password.


Technical support
-----------------

For technical support, please contact us at support@elcomsoft.com.


Registration
------------

Unregistered (trial) version decrypts only first 10% pages (but
at least one page) of the documents, and replaces all other pages
with blank (empty) ones. Also, it doesn't support command line
interface.

After you register (look at "order.txt" for details), we'll
send you your personal registration code. To enter it into the
program, just press the "Register" button on the main screen;
the program will display the small window dialog asking you to
enter the code. If the code is correct, APDFPR shows the message
that it is registered now, and so since than has the full
functionality.

Please note that your registration will be valid for all future
versions of APDFPR -- it means, that they will be free for you.


Copyright and license
---------------------

See "license.txt" file.


Where to get the latest version
-------------------------------

The latest version of AZPR is always available from our web page
at:

http://www.elcomsoft.com/azpr.html

Other password recovery products (for RAR, ACE and ARJ archives,
Microsoft Access 2/95/97/2000 databases (uncluding user-level
passwords and owner information), Microsoft Office documents
(Word, Excel, PowerPoint, Visio), Microsoft Outlook, Microsoft
Money, Microsoft Backup, Microsoft Project, Lotus Organizer,
Lotus 1-2-3, Lotus WordPro, Lotus Approach, Intuit Quicken and
QuickBooks, Adobe Acrobat PDF, Borland/Corel Paradox, Symantec
ACT!) are available from our server at:

http://www.elcomsoft.com/prs.html

If you'd like to receive notifications about new releases of AZPR,
please subscribe to our mailing list; mailing list archive and
subscription information is available at:

http://azpr.listbot.com