Private Idaho is an Internet privacy utility for Windows. It simplifies using e-mail with PGP, anonymous remailers, and nym servers, providing you with more electronic privacy. Some of its features include:

# point and click ease of use
# works with popular commercial and Windows e-mail, Web browsers, news readers
# supports PGP message/file encryption, decryption, and signing
# advanced PGP options such as multiple keys and encrypt to self
# PGP key management features
# directly send e-mail through SMTP
# directly receive PGP messages from POP3 mailboxes
# USENET posting from remailers
# support for nym servers
# advanced remailer options such as encryption, chaining, latent time, and cutmarks
# supports Cypherpunk, Mixmaster, and Soda anonymous remailers

Private Idaho is currently being used all over the world, and seems to be one of the more popular PGP tools. Based on suggestions from many of its users, it is always improving.

Private Idaho is free, with no shareware or registration fees. Its purpose is to encourage the wide spread use of strong cryptography and provide users with a greater level of on-line privacy.

http://www.eskimo.com/%7Ejoelm/pi.html