Chocolatey - The sane way to manage software on Windows.
Ninite - Ninite is the easiest way to install software.
Scoop - A command-line installer for Windows
Ketarin - Ketarin is a small application which automatically updates and optionally installs setup packages...
NuGet - The NuGet Gallery is the central package repository for NuGet, the package manager for .NET.
Windows Remix - Web-based batch software installer with zero dependencies. Recommended first visit after reinstalling Windows or buying a new laptop.