WinCryptor - Version 2.42 WinCryptor is a highly sophisticated file/document encryptor for Windows. Its main advantage over the competitors is the ability to personnalize the encryption algorithm with the use of a key. In addition, this is a true byte-based encryption that is probably secure enough for the military or other similar organizations. Result: a file encrypted using your Key cannot possibly be decrypted without it. Protect your documents before you email or store them! Any document can be encrypted: Word, Excel, text, picture, movie, HTML, exe... even zip files!!! Be sure to keep the "Key" in a safe place.