Enterprise Library

Enterprise Library

"The patterns & practices Enterprise Library from Microsoft is a library of application blocks designed to assist developers with common enterprise development challenges. Application blocks are a type of guidance, provided as source code that can be used "as is," extended, or modified by developers to use on enterprise development projects."
Application Blocks

Caching Application Blockhttp://www.blogger.com/img/blank.gif
Cryptography Application Block
Data Access Application Block
Exception Handling Application Blockhttp://www.blogger.com/img/blank.gif

Explore the Enterprise Library Exception Handling Block for .NET 2.0
Logging Application Block
Policy Injection Application Block
Security Application Block
Validation Application Block

Videos

MSDN Architecture Webcast: patterns & practices Live!: Enterprise Library for .NET 2.0 (Level 200)