Downloading CryptSync 1.4.4.462 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available. We recommend checking the downloaded files with any free antivirus.
The software lies within Security Tools, more precisely Privacy. The actual developer of the free program is Stefan Küng. The program's installer file is generally known as CryptSync.exe. The most popular versions among CryptSync users are 1.3, 1.2 and 1.0.
From the developer:
CryptSync is a small utility that synchronizes two folders while encrypting the contents in one folder. That means one of the two folders has all files unencrypted (the files you work with) and the other folder has all the files encrypted.
The synchronization works both ways: a change in one folder gets synchronized to the other folder. If a file is added or modified in the unencrypted folder, it gets encrypted.
You may want to check out more software, such as Cisco Trust Agent, Aurora Password Manager or SpotMSN, which might be related to CryptSync.