VB采用三层架构的CRM客户关系管理系统，基于Access数据库。是一个电脑公司以前用过的，因些功能上可以满足中小型公司使用，只是部分模块是定制的，有的可能不太实用，从界面上来说，像是一挺专业的程序。

　　本系统用到有yfDNetMenu.ocx、ManageClient.dll控件，已打包，初次运行请运行reg.bat以及重新添加两控件引用，否则报错。-VB three-tier architecture, CRM customer relationship management system, based on Access database. Is a computer firm had been used previously, because these functions satisfy the medium and small companies to use only part of the module is customized, and some may not be practical, from the interface point of view, like a professional program. This system uses a yfDNetMenu.ocx, ManageClient.dll controls, has been packaged, the initial run reg.bat run and re-add the reference to two controls, otherwise Baocuo.