Enterprise Library 是微软patterns & practices 小组.NET Framework开发的一套企业库，目前最新版本为v4.1，共包括9个Application Block，包括数据访问（Data Access Application Block）、异常管理（Exception Handling Application Block）、数据验证（Validation Application Block）等等，对企业应用开发非常有帮助，也非常实用。

-Enterprise Library is Microsoft' s patterns &　practices group. NET Framework development of an enterprise database, the latest version is v4.1, total, including 9 Application Block, including the data access (Data Access Application Block), exception management (Exception Handling Application Block ), data validation (Validation Application Block), etc., for enterprise application development is very helpful and very useful.