Jetico BCTextEncoder - Jetico BCTextEncoder is software that ensures your text-based communications are safe by allowing you to encrypt them.
KeyScrambler - Home of KeyScrambler, the world's most advanced anti-keylogging system.
GNUPGK - A GnuPG Frontend GUI made in C#.
SpyShelter Anti Keylogger - SpyShelter Premium offers complete protection against all kinds of logging activities.
TheLetterEncrypter - TheLetterEncrypter is a small (14KB download) AES-based text-encryption program.
Protectedtext - The safest site on the web for storing your text! Enter any URL, e.g. protectedText.com/anything