一些Win7版本的用户在打开Yunfan VPN for China时，系统会提示如下错误：
这是因为系统缺少api-ms-win-crt-runtime-l1-1-0.dll文件导致的，请下载以下文件，解压缩后安装里面的程序，然后重启计算机即可。
点击下载：Windows6.1-KB2999226-x64.msu
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