MaBaSoft has updated its Mac OS 9-compatible Quit CSM Control Strip module.
Quit CSM lets you quit applications without having to make them active - you can quit one application or all running applications. The software also lets you quit and restart the Finder and background-only applications, and shows memory useage and application sizes. It can also restart and shut down a computer.
Quit CSM comes in six languges, including English. It runs on any Mac running System 7.1.1 or better. It costs $5 and is shareware.