AppliKiller 1.0.1 is a free and quite practical tool if you usually leave the PC switched on, making it also easier to use. It is designed to program automatic shutdowns of programs and windows in Windows after a determined amount of time.
It is especially designed to save PC energy and so closes those programs that, after an interval of time, don´t need to continue open (and so saves energy).
It is also prepared to close files and applications in batches, and hardly consumes resources (luckily, as it´s aim is to save energy) nor takes up space on your hard drive.