Microsoft Enterprise Library 5.0

Microsoft Enterprise Library is a collection of reusable application blocks designed to assist software developers with common enterprise development challenges. This release includes: Caching Application Block, Cryptography Application Block, Data Access Application Block, Exception Handling Application Block, Logging Application Block, Policy Injection Application Block, Security Application Block, Validation Application Block, and Unity Application Block.
This major release of Enterprise Library contains many compelling new features and updates that will make developers more productive. These include:

• Major architectural refactoring that provides improved testability and maintainability through full support of the dependency injection style of development
• Dependency injection container independence (Unity ships with Enterprise Library, but you can replace it with a container of your choice)
• Programmatic configuration support, including a fluent configuration interface and an XSD schema to enable IntelliSense
• Redesign of the configuration tool to provide:
  • A more usable and intuitive look and feel
  • Extensibility improvements through meta-data driven configuration visualizations that replace the requirement to write design time code
  • A wizard framework that can help to simplify complex configuration tasks
• Data accessors for more intuitive processing of data query results
• Asynchronous data access support
• Honoring validation attributes between Validation Application Block and DataAnnotations
• Integration with Windows Presentation Foundation (WPF) validation mechanisms
• Support for complex configuration scenarios, including additive merge from multiple configuration sources and hierarchical merge
• Optimized cache scavenging
• Better performance when logging
• A reduction of the number of assemblies
• Support for the .NET 4.0 Framework and integration with Microsoft Visual Studio 2010
• Improvements to Unity

Download the MSI and install