from the doc: 'The key features of ARCHPR are: - The program has a convenient user interface - The program is very fast: for ZIP, brute-force attack speed is up to 15 million passwords per second (on Pentium III) - Guaranteed decryption (usually, within the hour) of most WinZip archives (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 (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 lot 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 (for ZIP and ARJ) - 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' Commercial product.
archpr.exe