Gpg4win encrypts files and folders
As well as individual files, Gpg4win (GNU Privacy Guard for Windows) 2.1 can now encrypt complete folders and it also now runs under Windows 7. The free package includes a number of cryptography tools developed for the German Federal Office for Information Security (BSI) for encrypting and signing email and files.
Gpg4win integrates into Microsoft Outlook in the form of a plug-in and into Windows Explorer via extra options in Explorer's pop-up menu. It supports both of the appropriate cryptographic standards; OpenPGP and S/MIME (X.509).
The developers have focused their efforts on making the program more user friendly. Decryption, encryption, signing and verification should all now be considerably easier. There have also been enhancements such as a simplified procedure for setting up X.509 root certificates and a quick mode for signing and encrypting emails.
The package contains GnuPG (cryptographic components), Kleopatra (certificate manager) GPA (graphical interface), GpgOL (Outlook plugin), GpgEX (integration into Windows Explorer) and mail client Claws Mail. The package is about 38 MB in size and is available to download from the project's web site.