解决framework 4.5程序部署到Windows 8和windows 8.1出现“An app on your PC needs the following Windows feature: .NET Framework 3.5 (includes .NET 2.0 and 3.0)”
在windows 7 x64上编译的.net framework 4.5程序，使用InstallShiled打包以后安装到windows 8 && 8.1后出现
因为在windows8上默认只安装有.net framework 4.0 4.5，没有使用CLR 2.0的framework 2.0 3.0 3.5，而4.x使用的全新的CLR 4.0.
根据 how-to-solve-an-app-on-your-pc-needs-the-following-windows-feature-net-framework-3-5-includes-net-2-0-and-3-0-on-windows-8这篇文章中提到相关资料，在exe.config中添加：
“An app on your PC needs the following Windows feature: .NET Framework 3.5 (includes .NET 2.0 and 3.0)”
的提示。
根据 how-to-solve-an-app-on-your-pc-needs-the-following-windows-feature-net-framework-3-5-includes-net-2-0-and-3-0-on-windows-8这篇文章中提到相关资料，在exe.config中添加：
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| <configuration> | |
| <startup uselegacyv2runtimeactivationpolicy="true"> | |
| <supportedruntime version="v4.0"> | |
| </supportedruntime> | |
| </startup> | |
| </configuration> |
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