PortableApps.com - PortableApps.com is a website offering many free, commonly used Windows applications that have been...
Listary - Listary is a revolutionary search utility for Windows
Portable Start Menu - Portable Start Menu - easy way to open/close applications on USB sticks
Keypirinha - A lightning fast and flexible keystroke launcher for Windows. No installation required (portable).
The Portable Freeware Collection - One of the largest collections of free, portable software on the web.
Synapse - Synapse is a semantic launcher written in Vala that you can use to start applications as well as find and access relevant documents and files by making use of the Zeitgeist engine.