NuGet is a Visual Studio extension that makes it easy to add,
remove, and update libraries and tools in Visual Studio projects
that use the .NET Framework. If you develop a library or tool that
you want to share with other developers, you create a NuGet package
and store the package in a NuGet repository. If you want to use a
library or tool that someone else has developed, you retrieve the
package from the repository and install it in your Visual Studio
project or solution.
When you install the package, NuGet copies files to your
solution and automatically makes whatever changes are needed, such
as adding references and changing your app.config or web.config
file. If you decide to remove the library, NuGet removes files and
reverses whatever changes it made in your project so that no
clutter is left.
Everything necessary to install a library or tool is bundled
into a package (a .nupkg file). A package includes files to copy to
your project and a manifest file that describes the contents of the
package and what needs to be done to add or remove the library.
Packages are bundled into feeds that Visual Studio accesses in
order to present lists of available packages. There is an official
feed that is the default source for NuGet, and you can contribute
to that feed or create your own feeds.
NuGet User Interface in Visual Studio
NuGet runs in all versions of Visual Studio 2012, as well as
Visual Studio 2010, Visual Web Developer 2010, and Windows Phone
Developer Tools 7.1. You can find, install, remove, and update
packages by using the Manage NuGet Packages dialog
box or by using PowerShell command-line commands in the
Package Manager Console dedicated Visual Studio
window. Both options are accessible from the Visual Studio main
menu; you can also open the dialog box from a Solution Explorer