实现RAS客户类拨号上网系统 RAS远程访问服务（RemoteAccessService），在Windows98/95中作为\"拨号网络系统\"，让用户在遥远位置工作就好象对计算机网络直接连接，可以访问一个或更多RAS服务器-achieve the client system RAS dial-up Internet remote access services (RemoteAccessService), the Microsoft Windows98/95 as "dial-up network systems", enabling users to work in a distant location on the right seems directly connected to the computer network, visit one or more RAS server