Windows Server 2008 x64, two of them in fact in an NLB cluster. Trying to install .NET Framework 4, first went fine, second refuses. Running installation package - both the web installer and full ...

Turn Windows Features on or off Uninstall Microsoft .NET Framework 4.6 or higher Use the DISM command to install Microsoft .NET Framework 3.5 Download .NET Framework 3.5 from the official website ...

The problem Whenever you try to install an app that utilizes the .Net frame work, for example Virtual Router, on Windows 8, you are prompted to download the dependant framework online.

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.

Yesterday, Microsoft posted the final version of the .NET Framework 3.5 to its download site, as well as several updates to other .NET Framework versions.

Microsoft has warned Windows 11 users that they might experience issues launching and using some .NET Framework 3.5 applications.