一般用户的拨号上网，利用的是Windows的Remote Access Service（RAS，远程访问服务）。拨号信息是放在注册表里的,本程序实现对拨号密码的获取-users of dial-up Internet access using the Windows Remote Access Service (RAS, remote access services). Dial-up information on the registry's, the program for dial-up access to passwords