Install .NET Framework 3.5 Offline on Windows 10 & 8
Offline Installer for .NET Framework 3.5 for Windows 10 and 8.x. With this tool, you can install .NET 3.5, 3 and 2 on Windows 10, 8 and 8.1 from existing Windows installation media or mounted ISO.
Simply program converts a standard zip file to an ISO file. Either Drag and Drop into the simply interface or open the more advanced interface. External code is the use of Microsoft's CDImage and DotNetZip (Documentation included)