To install Durandal into an existing web project, you can use NuGet. Search for "Durandal" in the Library Package Manager or simply open up the Package Manager Console and type the following command
In addition to the basic Durandal package, you may also want to install
Durandal.Transitions to get the prefab entrance transition.
Durandal.StarterKit package installs all the above packages as well as Twitter.Bootstrap, FontAwesome and Microsoft.AspNet.Web.Optimization. It also includes some basic views and view models, so you can have a starting place for building your app. If you are starting a new project, we recommend you just install the starter kit nuget.
Note: The Durandal.StarterKit package is designed to be installed into an MVC4 application. It should work with MVC3 as well.