1. 获取有哪些可选功能可以安装
Dism /online /Get-Features >c:features.txt 或 Dism /Online /Get-Features /Format:Table
2. 查看某一个可选功能的详细信息
Dism /online /Get-FeatureInfo /FeatureName:TFTP
3. 安装一或多个可选功能
Dism /online /Enable-Feature /FeatureName:IIS-HostableWebCore /ALL&Dism /online /Enable-Feature /FeatureName:IIS-ASPNET45 /ALL