Windows 10 |best| — Net 2.0

⭐⭐☆☆☆ (2/5) – Essential for compatibility, obsolete for everything else. Pro tip: If you need to run an old .NET 2.0 app but don’t want the framework permanently installed, consider using a Windows 10 virtual machine with the feature enabled only in that VM. Alternatively, test if the app runs on .NET 4.x with <supportedRuntime> redirects – many do.