If you've forgotten the password to a ZIP archive, this utility may help you to guess it (see screen shot). It uses a brute-force attack based on the options you set regarding minimum and maximum password length and character set, and it also offers a dictionary-based attack. The program can generate up to 15 million passwords per minute on a Pentium-based system and is useful for estimating how strong your passwords are. This version offers faster performance and bug fixes.
In this demo, the dictionary attack and brute-force masks are not available, you can't set the password length greater than five characters, and you can't create a log file. The full version costs $30.