What Are Targeting Packs?
Microsoft provides a set of
“Multi-Targeting Packs”, to provide Microsoft Visual Studio and other
developer tools with a structured system for targeting .NET platforms.
The primary content of these targeting packs is reference assemblies,
which describe the APIs supported by a given .NET platform version.
Compilers and other tools and services can consume these assemblies to
provide a high-fidelity representation of that .NET platform version.
Learn more about the above : http://msdn.microsoft.com/en-us/hh454951.aspx
Complete information about the VS 2010 pack,
use the below link to see
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