Microsoft supplies .NET Framework to the users that serves as a programming tool for them. The latest version of this programming tool is .NET framework V4 0 3019 that allows you to create visually stunning applications on Windows platform. Also, there are many applications that require latest version of this framework from Microsoft to run. If you do not have this software in your computer, you cannot enjoy these applications. You can download .NET Framework V4 0 3019 for free from here and have all the fun and entertainment. You need not delete older versions as this version can exist side by side earlier versions.