Classic Shell - Classic Shell was developed for Windows 8 since that was the first version of the popular operating system to forgo the iconic Start menu.
Keypirinha - A lightning fast and flexible keystroke launcher for Windows. No installation required (portable).
Start Menu X - Start Menu X with Start Button. Power users know how inconvenient and time-consuming it is to launch programs from the system menu.
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.
Start8 - Start8 returns the familiar Start menu to Microsoft's latest Windows 8 operating system.
Listary - Listary is a revolutionary search utility for Windows