Hi Suchi16，

谢谢你在这里发帖。

为你的 问题，如果你想在Windoes XP上使用Windows7开发的winform应用程序，你需要检查库。有些图书馆可以使用，但有些图书馆不能。这取决于.net框架的版本。

如果没有你的代码，我无法给出绝对答案。您能否提供更多我们可以尽力帮助您的详细信息？

***的问候，

Wendy

Can I run a VS C# Windows form application developed in Windows 7 in Windows XP? Can I use the same class libraries used in Windows 7 in Windows XP?

Hi Suchi16,

Thank you for posting here.

For your  question, if you want to use winform application developed in Windows7 on Windoes XP, you need to check the libraries. Some libraries could use, but some of them could not. It depends on the version of .net framework.

I could not give a absolute answer without your code. Could you provide more details that we could try our best to help you?

Best Regards,

Wendy