Freeware: Secexmail

SecExMail Home 1.51 Secexmail makes e-mail encryption as easy as sending a message. There are no plugins necessary and it will work with any standard email client including Microsoft Outlook, Outlook Express, Calypso, Eudora and many more.

Crypto Anywhere - OpenPGP Edition 2.0Secure Email. Standalone or integrated with Outlook. Can decrypt and encrypt messages to friends using PGP, OpenPGP, Secexmail and many more. Crypto Anywhere allows you to make a travel floppy which can be used in internet cafe's or at work. Free.

SecExFile Home 1.1SecExFile brings one-click file protection to the desktop. It integrates with Windows Explorer to make securing your personal or corporate data easy. SecEx File can be configured to email the armoured file once encryption is completed.