.NET Reactor is a powerful code protection and software licensing system for software written for the .NET Framework, and supports all languages that generate .NET assemblies. Its' main features are :

Intellectual property protection
NecroBit Protection
Native Code generation
Obfuscation
Control Flow Obfuscation
String Encryption
Anti Tampering
Resource Encryption and Compression

Private exe Protector (PEP) is a professional software copy protection and license management. PEP works with traditional methods, such as file compression, code fragment encryption, metamorphic loading, protection from debugging and file tampering, and features new innovative techniques like data protection with stolen resources technique. All in one, it is the ideal solution for software developers.

Obsidium is a feature-rich professional software protection and licensing system that was designed as a cost effective and easy to implement, yet reliable and non-invasive way to protect your 32- and 64-bit Windows software applications and games from reverse engineering, unauthorized modifications ("cracking") and redistribution ("software piracy") while providing a secure and flexible licensing/registration system.

With IP*Works! SSH, developers can rapidly build SSH secured applications including secure file transfer, secure remote login, secure email, and more. SSH is a low-level communications protocol providing security via strong encryption and advanced cryptography.

IP*Works! S/MIME is a comprehensive suite of components for Email encryption and document security. IP*Works! S/MIME implements the S/MIME standard for encryption and decryption using Public Key Cryptography Standards (PKCS). Fully-managed C# components optimized for cross-platform Xamarin development. Build applications with Xamarin and ship across iOS, Android, and Mac.

IP*Works! OpenPGP is a comprehensive suite of components for Email encryption and document security. IP*Works! OpenPGP implements the OpenPGP standard for encryption and decryption and includes support for OpenPGP key generation and management.

IP*Works! Encrypt is a comprehensive suite of components for implementing strong encryption via major cryptographic standards. The easy to use components enable developers to quickly extend applications with powerful security features including encryption & decryption, secure message hashing, message signing & signature verification, and digital certificate generation and management.