ZIP password finder is an old program that allows recovering .zip password files.

ZIP-compressed files can be protected with a password, so those who know the password can only decompose the zip content. This possibility allows us to protect our private documents.
Sometimes we forget the password that we set in a ZIP file and need to recover it. In these cases, it is good to have a tool capable of decrypting the passwords of ZIP files.

ZIP password finder allows us to recover .zip password files. The program uses “brute force” to decrypt the file's password. This means it will test all possible combinations of characters to find the correct password. This operation takes a lot of time, and depending on the key length we are looking for, it can take thousands of days to recover a password. So we must correctly understand the program's options to speed up the process of password recovery.

The section on CharType Property offers the possibility of limiting the combination of characters used to decrypt the password:

• Numeric (0-9): only use the numeric characters to decrypt the password. If we don't remember the file password but remember that the password only contained numbers, this option will speed up the password recovery.
• Alpha (upper)(A_Z): only use uppercase alphabet characters. (A, B, C, D,...).
• Alpha (lower)(a-z): only use lowercase alphabet characters (a,b,c,d,...)
• Alpha (upper/lower case)(A_Z,a-z): use the alphabet's upper and lowercase characters.
• AlphaNumeric (upper/lower)(0-9, A_Z,a-z): use the alphabet's characters in both uppercase and lowercase letters, along with the numeric characters.
• AlphaNumeric (upper case)(0-9, A_Z): use characters of the alphabet in capital letters and numeric characters.
• AlphaNumeric (lower case)(0-9,a-z): use characters of the alphabet in lower case and numeric characters.
• Full ASCII set: use all available ASCII characters, which includes numbers, alphabet letters, and other characters such as -.&%$. This option is the most time-consuming since the possible combinations between characters are bigger.
• NonAlphaNumeric: will use the characters that are neither numbers nor letters of the alphabet, so it only uses characters of the type: $#@·%

According to the kind of password we want to decrypt, we must use one option. When more characters are included, the greater will be the time the program takes to decrypt the password.

If we remember the number of characters containing the password (password length), we can use the field “Max Password Length” to limit the number of characters the program will check.

This old program only works on Operating Systems up to Windows XP. Yet the program complies with its job perfectly and allows the recovery of forgotten passwords of old files.