NET Framework has been developed by Microsoft as a programming model to help developers and designer come up with new and interesting applications on Windows platform. It works as an integral part of applications running on Windows platform. If you are trying to run a new application on your computer that has an older version of NET Framework, it will probably not run. In such a case, what you need to do is to upgrade by downloading the latest NET Framework on your computer. You can download Microsoft NET Framework 1 14322 from here for free to be able to run all the latest applications without any interruptions.