Zip Password Recovery Key - Version 6.5 Zip Key recovers passwords for ZIP archives created with WinZip, PKZip or any other ZIP-compatible software using Brute-Force, Xieve, Known Plaintext or Dictionary attacks. If there is at least one file available unencrypted, Known Plaintextattack decrypts the whole archive for you, regardless of the password length. SureZip Recovery decrypts most WinZip archives in less than an hour. Download and try a free demo version.