本书向读者概要地介绍了.NET框架和通用语言运行库的基本概念，进一步讲解了新的.NET框架与已有的COM+ (组件对象模型扩展)技术的互操作方法，即如何在COM+中使用.NET组件以及如何在.NET框架中使用已有的COM+组件；如何用C#语言创建全新的符合.NET规范的COM+组件，这些组件可用于事物处理、安全、事件、对象共享、事件排队以及远程处理。-This book introduces briefly. NET Framework and common language runtime the basic concepts, to further explain the new. NET framework and the existing COM+ (Component Object Model extension) technology interoperability methods, namely, how the COM+ use. NET components and how. NET Framework use the existing COM+ components　how to create a new C# language consistent. NET standard COM+ components that can be used for transaction processing, security, events, shared object, event queuing, and remoting.