The trial version of ARCHPR has the following limitations:

•Recoverable passwords are limited to 4 characters

•Some dictionary attack options are disabled

•Password from keys and Guaranteed WinZip Recovery attacks are not available

•ZIP known-plaintext and guaranteed WinZip attacks have the following limitations:

•Decryption keys are hidden, and only the first file from the archive can be decrypted

•The attack cannot be resumed

Note that the Standard edition supports classic ZIP encryption only, and does not include Password from keys and Guaranteed WinZip Recovery attacks. The Professional edition additionally supports WinZip archives with enhanced AES encryption (128-bit and 256-bit).