问题一：“If you prefer to have greater separation (for example, because you want to put the DAL code into a dedicated server separate from the web server, for security reasons), ”中说可以把DAL放其它如数据服务器上，他是如何办到的，怎么样可以把代码分布到不同的机子上？
问题二：“Some of the most popular tools for .NET developers are NHibernate (nhibernate.sourceforge.net [open source]), EntityBroker (www.thona-consulting.com/content/products/entitybroker.aspx [free community version and commercial versions available]), and LLBLGen Pro (www.llblgen.com[commercial]). A simpler tool for small to mid-size systems is Paul Wilson's ORMapper (www.ormapper.net).”如果你有用过请说下经历谢谢。
这两天没在看，偷懒了。
发现一：有对错误信息的log记录。一直有这个疑问，呵呵。
发现二：自动发送邮件有具体的配置，在第三章的Solution里。