如何使用可能不存在一个.NET Framework版本安全检查.NET Framework版本？ [英] How to safely check .NET Framework version using a .NET Framework version that may not exist?

问题描述

我已经与.NET 3.5的应用程序。如果用户运行，而无需.NET 3.5的安装，我想有他们所看到的控制，也许提供了一个信息，即他们能够理解（有链接到.NET 3.5）与未处理的异常堆栈跟踪。但是，如果他们实际上并没有.NET 3.5如何让我的应用程序来控制什么？

I have an application built with .NET 3.5. If a user runs it without having .NET 3.5 installed, I want to have control of what they see and perhaps provide a message that they can understand (with a link to .NET 3.5) versus unhandled exception stack traces. But if they don't actually have .NET 3.5 how can my application control anything?

推荐答案

更​​重要的是，你可以使用一个安装程序技术，如维克斯或Visual Stuido安装项目，在安装过程中会检查所有的prerequisites你软件，如特定.NET框架运行时存在。如果不是，它会安装它们，或者至少告诉用户哪里得到他们，下一步该怎么做。

Better yet, you could use an installer technology, such as Wix or a Visual Stuido setup project, that checks during installation that all the prerequisites for you software, such as a particular .NET framework runtime exist. If not, it will install them, or at least tell the user where to get them and what to do next

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