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Advanced Archive Password Recovery (ARCHPR) recovers protection passwords or unlocks encrypted ZIP and RAR archives created with all versions of popular archivers. Recover passwords for plain and self-extracting archives created with PKZip and WinZip, RAR and WinRAR automatically or with your assistance. Guaranteed unlocking of archives created with WinZip 8.0 and earlier in under one hour is possible by exploiting an implementation flaw.


ARCHPR features ultimate compatibility among the various types of archives, knows weaknesses of certain types of protection, and provides best-in-class performance in unlocking all types of archives.


Features and Benefits


Supports all versions of ZIP/PKZip/WinZip, RAR/WinRAR, as well as ARJ/WinARJ, and ACE/WinACE (1.x)
Guaranteed recovery of archives in under 1 hour for ZIP archives created with WinZip 8.0 and earlier and containing at least 5 files
Supports archives over 4 GB and self-extracting archives
Supports strong AES encryption found in WinRAR and the new versions of WinZip
Exploits all known vulnerabilities and implementation flaws in the various compression algorithms for faster recovery
Speedy known-plaintext attack recovers certain ZIP and ARJ archives in minutes (user must supply at least one unprotected file from that archive)
Interrupt and resume operation at any time
Supports background operation by utilizing idle CPU cycles only
Dictionary and brute-force attacks with user-defined masks and advanced templates
Highly optimized low-level code for optimum performance


Please note, however, that for the password is not stored anywhere in the archive (ZIP/RAR/ARJ/ACE file), and so it cannot be just extracted or decrypted. Instead, ARCHPR can recover it by trying different passwords: all possible combinations in a given range, or from a wordlist, etc. ARCHPR can test as many as ten to thirty million passwords per second (for ZIP archives), and so the likelihood of finding a valid one is very high. There is still no guarantee that the password will be recovered, but here the human factor plays its role: most people use short and/or easy to remember passwords. We estimate the success rate as 90-95%. See Passwords and encryption and Known bugs and liminations for more information.


The program that is licensed to you is absolutely legal and you can use it provided that you are the legal owner of all files or data you are going to recover through the use of our software or have permission from the legitimate owner to perform these acts. Any illegal use of our software will be solely your responsibility. Accordingly, you affirm that you have the legal right to access all data, information and files that have been hidden.


You further attest that the recovered data, passwords and/or files will not be used for any illegal purpose. Be aware password recovery and the subsequencial data decryption of unauthorized or otherwise illegally obtained files may constitute theft or another wrongful action and may result in your civil and (or) criminal prosecution.

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