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dism /online /enable-feature /featurename:IIS-ISAPIFilter
dism /online /enable-feature /featurename:IIS-ISAPIExtensions
dism /online /enable-feature /featurename:IIS-NetFxExtensibility45
完成后再次运行“dism /online /enable-feature /featurename:IIS-ASPNET45”，成功。