设置项目.net 4的先决条件 [英] setup project .net 4 prerequisite

问题描述

我已将.net framework 4作为先决条件添加到我的安装程序包中，当安装此程序包时，错误报告说，安装.net 4需要WIC"Windows映像组件"，我也已将其添加为先决条件. />
但是由于已经安装了该组件的较新版本，安装失败.

我想问一下如何检查该WIC是否已安装，并在有较新版本时跳过安装?

感谢

I added .net framework 4 to my setup package as a prerequisite, when installing this package an error reports that installing .net 4 require WIC "windows imaging component" ,which I''ve added as a prerequisite also.

but installation failed due to a newer version of this component already installed.

I want to ask how to check whether this WIC is installed or not and skip installing it when there is a newer version?

thanks

推荐答案

前提条件的安装程序是应该执行的检查，而不是您的安装程序.

The installer for the prerequisite is what should be doing the checking, not your installer.

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