Microsoft .net Framework 4 Multi Targeting Pack ((better))

At its core, a multi-targeting pack (also known as a targeting pack) is a set of binaries and metadata that allows Visual Studio to "see" and compile code for a specific version of the .NET Framework that may not be the primary version installed on your development machine.

: It includes only the metadata—IntelliSense files and assembly headers—required for a compiler to understand the code, keeping the developer environment cleaner than a full SDK installation. microsoft .net framework 4 multi targeting pack