Advanced Archive Password Recovery is a program to recover lost or forgotten passwords for ZIP/PKZip/WinZip, ARJ/WinARJ, RAR/WinRAR and ACE/WinACE archives. Supports the customizable brute-force attack, effectively optimized for speed (for ZIP, up to 15 million passwords per second on Pentium 4), dictionary-based attack, and very fast and effective known-plaintext attack. Supports strong WinZip encryption (AES). Multilangual user interface.

The key features of ARCHPR are:

The program has a convenient user interface
The program is very fast: for ZIP with traditional encryption, brute-force attack speed is up to fifteen million passwords per second on modern CPUs like Pentium 4 (Prescott)
Guaranteed decryption (usually, within the hour) of many WinZip archives (created in versions 8.0 and below, with 5+ encrypted files) is available; it works regardless the password complexity and length
The program can work with archives containing only one encrypted file
Archives created by various software packages are supported
Strong WinZip encryption (AES) is supported
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 (with word mutations) is available
The "brute-force with mask" attack is available
Very fast known-plaintext attack is available (ZIP and ARJ only)
You can interrupt the program at any time, and resume from the same point later
The program can work in the background, using the CPU only when it is in idle state