If you get the Runtime error: Failed to locate Framework DLL when you try to install a software, then these fixes are sure to help you!

Microsoft .NET 9 Preview 7 also brings new features and enhancements to the ASP.NET Core web framework and .NET MAUI UI framework.

Microsoft has unveiled a new Dynamic Language Runtime (DLR) layer for the .NET development platform. Designed to simplify the process of bringing support for additional dynamic languages to .NET ...

Additionally, if you don't want to download the whole Redistributable package from Microsoft (thus skipping steps 1-3), download only the CAB file for .NET Compact Framework 3.5 from MoDaCo.