Short answer: A tool that helps to maximize the utilization of system resources, by containing applications in their own environment.

It happens sometimes I want to change the Location type/profile of a certain Network Adapter (mostly when testing).

Lately I have not kept up with the news, lets say for last year or so. For some reason I clicked on About tab of Chocolatey on the site, usually I just search for the package, and leave it at that. On that page I read that Microsoft is going to implement an Package System (similar to apt-get for Ubuntu and yum for Red Hat), compatible with Chocolatey.