1，安装 dotnet-win-x64 https://dotnet.github.io/
2，安装 DotNetCore.1.0.4_1.1.1-WindowsHosting.exe https://www.microsoft.com/net/download/windows run app 环境
3，安装 Windows6.1-KB2999226-x64.msu
4，安装修复 vc_redist.x64.exe
5，执行命令 net stop was /y , net start w3svc
关于asp.net core部署到iis中出现 HTTP Error 502.5 - Process Failure的问题
环境是windows Server2008R2
原因是系统缺少一个补丁：Windows6.1-KB2999226-x64.msu
附stackoverflow原文：http://stackoverflow.com/questions/38624453/asp-net-core-1-0-on-iis-error-502-5
执行命令：
net stop was /y
net start w3svc