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Ultimate Zip Cracker
The challenge of any password recovery software lies in its ability to open documents
protected with a secure file open password. Most recovery software up in the software
market have been found to be incompetent for this task, and are a sheer waste
of time and money. Why this? The Brute force attacks don't work very well on secure
passwords that are non-dictionary words, or passwords longer than 6 characters
because they could take limitless time to try a huge number of combinations. Most
passwords that we come across are secure. Key recovery (which recovers the actual
encryption key as a shortcut to opening the file without needing a password) is
the best solution. Ultimate Zip Cracker by VDG Software (which opens Word, Excel
and WinZip files, Advanced Office Password Breaker by Elcomsoft are two popular
key recovery packages for Microsoft Word.
Advanced Office Password Breaker (AOPB)
This is a program to decrypt Word and Excel 97/2000 files that have file open protection set, as well as Word and Excel XP files with default (Office 97/2000 compatible) encryption. Its functionality is guarnteed, despite the length and complexity of the password. This is made possible by trying all possible encryption keys (instead of brute-force and dictionary attacks) and takes only about two weeks on single Pentium III/1000 PC (or just four-five days on faster dual-CPU systems).
Unregistered (trial) version can be used during 30 days after installation. The unregistered version does have some limitations. You can order the fully licensed version of AOPB over the Internet with any major credit card, or by check, or with bank/wire transfer. The ordering page is on a secure server, ensuring confidentiality. Delivery is done by emailing you the registration code. This transforms the trial version into the fully-functional one, as soon as your payment is received and verified.
Note: There are three versions of AOPB: Standard ($79), Professional ($199) and Enterprise ($1399). Standard Edition works only on single-CPU systems, Professional Edition works on single and dual CPU systems, using both processors (so recovery speed will be almost double) and Enterprise Edition uses as many CPUs as installed (up to 32, according to limitation of Windows operating system).
Requirements to run this program
Windows 95, Windows 98, Windows ME, Windows NT 4.0,
Note: to use Professional or Enterprise Edition of AOPB on a system with two or more CPUs, you need Windows NT, Windows 2000 or Windows XP.
Known bugs and limitations
The program does not work with the following files:
All such files are supported by Advanced Office XP Password Recovery (AOXPPR) which is available at:
On Office 97/2000 files with 'open' password, however, AOXPPR can run only brute-force and dictionary attacks, but they'll fail is password is long enough and well selected.
Unregistered (trial) version of AOPB uses only one CPU (regardless the number of CPUs available in the system), and doesn't actually decrypt the documents (though shows the encryption key when it is found).
Where to get the latest version
The latest version of AOPB is always available from:
Free Word/Excel Password Recovery Wizard
This software is freeware. It provides a simple to use wizard interface to recover
Word or Excel file open passwords only using dictionary and brute force approaches.