部分Win7用户在访问Mobile VPN for China时，会出现如下错误提示：
这个问题是因为系统缺少 api-ms-win-crt-runtime-l1-1-0.dll 文件所导致的。
请下载以下文件，解压后安装其中的程序，最后重启计算机即可解决问题。
点击下载：Windows6.1-KB2999226-x64.msu
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