This addon is a application. You need to extract it to your /applications folder to install it.
A download application for Vanilla Forum.
This application should not be used on a live installation of Vanilla because it is currently an alpha release. This application is based on the Vanilla Addons application and is, again, in the very early development stages, so therefore the download app AT THIS MOMENT will seem very similar, but we will use the Addons application as a base for the downloads plugin and build upon it. This application requires Vanilla 2.1.