ITIRfan，

感谢您在MSDN论坛中发帖.

对于您的问题，低于4.0的.NET Framework可能与同一台计算机上的.NET Framework 4.6兼容.

由于您的操作系统是Win7，还请了解如何安装Windows 7 Service Pack 1

然后安装 .NET Framework 4  和 .NET Framework 4.6  一个接一个. >

如果同时安装它们有任何问题，请随时告诉我，我很乐意帮助您进行故障排除.

***的问候，

I have an application called ACSR it only runs when Dot Net Framework Version 4.6 is installed. In the same computer I have a website (webapplication) that requires Dot Net Version less than 4.0. So when I upgrade it to Dot Net 4.6 the web app doesn't work 

and when on version 4.0 ACSR doesn't work.

Is there a way to have both the application work?

Windows 7 32 bit

IE11

Hi ITIrfan,

Thank you for posting in MSDN forum.

For your question, the .NET Framework which is lower that 4.0 could be compatible with .NET Framework 4.6 on the same machine.

Since your OS is Win7, please also Learn how to install Windows 7 Service Pack 1

Then install .NET Framework 4 and .NET Framework 4.6 one by one.

If there is any problem about installing both of them, please feel free to let me know, I'm willing to helping you troubleshooting.

Best Regards,