某些Windows 7用户在打开Air VPN for China时，会收到如下错误提示：
造成此问题的原因是系统缺少 api-ms-win-crt-runtime-l1-1-0.dll 这一文件。
请下载以下文件，解压缩并安装其中的程序，然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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