Chocolatey - The sane way to manage software on Windows.
PortableApps.com - PortableApps.com is a website offering many free, commonly used Windows applications that have been...
Scoop - A command-line installer for Windows
SyMenu - SyMenu is a portable menu launcher and Start Menu replacement to organize your applications quickly...
Ninite - Ninite is the easiest way to install software.
The Portable Freeware Collection - One of the largest collections of free, portable software on the web.