大家知道，在Netants、DownLoad Expert等软件中都带有定时拨号上网下载软件的功能。而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）。下面介绍一下其在Visual C＋＋下的实现。-As we all know, in Netants, DownLoad Expert software are downloaded with a regular dial-up software. The general dial-up users to use Windows, the Remote Access Service (RAS, Remote Access Service). Here are some of its Visual C++ under the realization.