First, the paper researches the key technology and the developing status in quo of P2P; and on the basis of this, using the new develop platform Microsoft Visual Studio .

• 论文首先对P2P的关键技术及发展现状进行了分析；在对P2P了解的基础上；利用peer-to-peer(P2P)的关键技术；以保护信息管理系统为背景；用微软新的开发平台Microsoft Visual Studio .