Windows7 http://https://www.baidu.com/s?wd=Win+7%E4%B8%8B%E6%90%AD%E5%BB%BAVPN&ie=UTF-8
https://blog.csdn.net/guo_guo_cai/article/details/78399925
http://www.itgemini.net/news/detail/3619.html
https://wenku.baidu.com/view/fe5b5929a36925c52cc58bd63186bceb18e8ed68.html
Windows2003
https://www.jb51.net/article/73537.htm
Windows Server 2008 R2
https://www.jb51.net/article/93977.htm