All Windows versions of Loadstar Sensors software require Microsoft .NET Framework v 4.0 or later installed on your computer. Some components of the software also require .NET Framework v 3.5 installed. If you get an error message that any of the versions or missing, you can enable the .NET Framework 3.5 through the Windows Control Panel. See how you can activate .NET 3.5 before installing Loadstar Sensors' software.