Advanced Archive Password Recovery has taken the place of the RAR and ZIP applications from the same manufacturer. This application allows you to crack the protection of both ZIP and RAR files created with most applications. It uses two methods to achieve this task: a brute-force approach and a dictionary-based approach. The first one simply uses all combinations of characters to guess the password, and the second one uses a dictionary with most common words to try to get to the password. Both methods take a lot of time, depending on the length of the password, the size of the file, and the available processing power on your computer. For example, the developer says that it is guaranteed that the application can "guess" the password of ZIP files version 8.0 or earlier under one hour, because they know of a application flaw. That tells you a lot of how much time cracking a given password can take. However, if you are forced to crack a password, this is one of the best-working applications of its kind and will get the job done, eventually. The best tip I can give you, though, is not to lose your password.