The oddest part of the keyword is the .rar extension. RAR is a proprietary archive format (created by Eugene Roshal) used to compress files, similar to .zip . Microsoft has officially distributed .NET Framework as a .rar file. Official downloads are always .exe (bootstrapper) or .iso (offline installer).
Locate (or the version corresponding to your OS build). Check the box next to the feature. net framework 4.0.30319.rar
If you're looking to work with a .NET Framework version like 4.0.30319 packaged in a RAR file, here are some general steps: The oddest part of the keyword is the