在 .Net Framework 4 中运行的 .Net Framework 3.5 应用程序的问题 [英] Problem with .Net Framework 3.5 applications running in .Net Framework 4

问题描述

我使用 VB 2008 Express 开发了一个应用程序，该应用程序针对 .Net framework 3.5.我在各种操作系统(如 windows vista、XP、7 等)上进行了多次安装，只要我可以成功安装 .Net Framework 3.5，它就可以正常工作.

I have developed an application using VB 2008 Express and this application is targeting on .Net framework 3.5. I done several installation on various OS like windows vista, XP, 7, etc and it was working quite OK as long as I can install the .Net Framework 3.5 successfully.

问题来了，我遇到了一台运行 Windows Vista 的 PC，它安装了 .Net Framework 4，所以我无法安装我的 .Net Framework 3.5.我的应用程序能够顺利运行并弹出一些错误消息.

Here comes a problem, I came across a PC running windows vista and it is installed with .Net Framework 4 so I wasn't able to install my .Net Framework 3.5. My application was able to run smoothly and some error message pop up.

谁能给我一些建议?即使 PC 作为 .Net 4 等更高版本的 .Net Framework，我仍然可以安装 .Net Framework 3.5.

Anyone can give me some suggestions? Can I still install .Net Framework 3.5 even though the PC as a higher version of .Net Framework like .Net 4.

顺便说一句，我很抱歉没有提到确切的错误消息，因为发生错误时的安装不是我完成的，而且安装的人没有删除确切的错误消息.这是我最大的问题 =(.我知道我在这方面不专业，对此我很抱歉.但他确实提到它与 .Net 4 Framework 或与之相关的某些内容有关.

By the way, I apologise for not mentioning the exact error message because the installation when the eeror occured wasn't done by me and the person doing it didn't take down the exact error message. This is my biggest problem here =(. I know I am unprofessional on this part sorry about that. But he did mention that it got something to do with .Net 4 Framework or something related to it.

他确实尝试过安装 .Net framework 3.5，但它不允许他这样做.是因为它不允许安装旧版本吗?或者我必须按此顺序先安装 .Net 3.5 然后再安装 .Net 4.0?

He did tried installing the .Net framework 3.5 but it doesn't allow him to do so. Is it becasue it does not allow an older version to be installed? Or do I have to install .Net 3.5 first then .Net 4.0 in this order?

请多多指教.谢谢

推荐答案

如果应用程序是针对 3.5 构建的，那么您将无法在不安装 3.5 的情况下运行您的应用程序.同时安装 4.0 和 3.5 没有问题 - 这是一个非常常见的场景.

You won't be able to run your application without installing 3.5 if that is what the application is built against. There is no problem in having both 4.0 and 3.5 installed at the same time - this is a very common scenario.

要解决您的问题，请安装 .NET Framework 3.5.

To solve your problem install .NET Framework 3.5.

这篇关于在 .Net Framework 4 中运行的 .Net Framework 3.5 应用程序的问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！