曾听一个朋友说过Entireprise Library，记得从头至尾只听到他在那夸Entireprise Library 真TM好，真TM先进，于是，今天找了一些资料，觉得不错，由于记性不好，网上黏贴了一些资料过来，就当是自己的学习笔记了。
制作了一张结构图，看起来一目了然，学习起来也有方向。
Enterprise Library 是 Microsoft patterns & practices Team 发行的企业类库。Enterprise Library 是一个应用程序块的集合。这些可重用的软件组件为帮助开发者解决普通企业开发的挑战而设计的。
包含如下8个Application Block：
- 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.
可以到如下地址，下载该版本。
http://msdn.microsoft.com/en-us/library/aa480453.aspx
Enterprise Library v4.0 在开发过程中，目前已经发布了：
EntLib 4.0 March 2008 CTP 下载地址：
http://www.codeplex.com/entlib/Release/ProjectReleases.aspx?ReleaseId=12142
Enterprise Library 4.0将支持依赖注入，现在给它起了个正式的名字Unity。
Unity will be the name of the dependency injection application block in Enterprise Library 4.0. Unity will be released in two forms - 1) a standalone container, and 2) an application block in Enterprise Library 4.0 with the existing application blocks refactored to take advantage of Unity.