Cryptocx is a PGP and AES compatible encryption component designed for use in any modern development environment. Cryptocx encrypts and decrypts data using standards compliant algorithms to make sure that your data is completely secured.

Chilkat Crypt is an advanced ActiveX encryption component that offers both RSA public-key encryption with digital signatures as well as symmetric encryption algorithms including AES (Rijndael), Blowfish, and Twofish.

Cryptocx is an Open PGP and AES compatible encryption component dll designed for use in any modern development environment. Cryptocx encrypts and decrypts data using standards compliant algorithms to make sure that your data is completely secured.

Polar Crypto Light is simple to use, yet supports the securest, most recommended and most cryptographic standards and crypto systems. It is an ActiveX control which seamlessly adds encryption features to your Windows application.

The Xceed Encryption library allows you to easily add strong encryption and decryption capability to your Windows applications. Supports the latest industry-standard strong encryption algorithms and offers both symmetrical and public-key cryptography

Polar Crypto Component gives your Windows applications the functionality of unbreakable encryption. It enables you to build your own security systems instantly, or to integrate it into your existing systems, enhancing their security and performance.

Open SSL 0.9.7c lets applications use Secure Sockets Layer (v2/v3), Transport Layer Security (v1), and a general-purpose cryptography library, for data integrity, authenticity, and privacy security features. Perl or Cygwin needed for Win32 compile.

Security toolkit with strong encryption and authentication. Supports many algorithms for symmetric/asymmetric encryption, authentication, and hashing. Free for non-commercial/shareware projects. Written in C. ActiveX and C++ wrappers are available.