Links

Here I want to recommend some unrenounceable crypto-related applications for Windows. Of course they are all free and open-source.

Password safes

Password Safe
Very useful application to encrypt all your passwords.
KeePass
Another powerful password safe.

Public-key encryption

PGP
Do I have to comment on PGP?
GPG
First-rate replacement for PGP; you may also want to have a look at WinPT, a GPG front-end for Windows.

File encryption

Blowfish Advanced CS
Excellent encryption program with lots of functions (key cache, secure file deletion, data compression, etc.).
AxCrypt
Easy and fast file encryption via the extension menu of Windows Explorer.

Disk encryption / encrypted containers

TrueCrypt
Creates encrypted virtual drives, very fast and secure (my favourite utility at the moment); use version 1.0 for Windows 95/98/Me and the latest version for Windows 2000/XP.
E4M (Encryption for the Masses)
The predecessor of TrueCrypt.
ScramDisk
Not as secure as TrueCrypt (to my view), but still very expedient; it also provides some comparatively fast ciphers like Square and TEA (note: for Windows 95/98/Me only).

Secure data deletion

Eraser
One of the best (if not the best) wipe programs available out there.

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