Most Invantive products use the Microsoft .NET framework version 4.5.1. If you do not have it yet, you can install the .NET Framework. The installation requires administrator rights.
Starting from Microsoft Windows version 8.1, the .NET framework 4.5.1 is delivered by default and installed by Microsoft.
As of the start of 2014, Microsoft has started to install the .NET framework 4.5.1 on Windows Vista SP2 and Windows 7 SP1 all over the world as well. In order to make sure you don’t have to install the .NET Framework 4.5.1 yourself in your business network, you need to make sure all the recommended updates are installed. You can find more information in this Microsoft .NET blog entry.