This tool is a good replacement of MS Task manager, it provides more info about each process (7 tabs), can open the containing folder of the process and kill more than one process (each are checked) in one click.
FreewareFiles tested Process Group Killer 2.0.2.2 on 2008-10-24 using leading
antivirus scanners and found it 100% Clean. It does not contain any form
of malware, spyware, viruses, trojans, etc. We will re-test each updated
version and remove the award as well as the program if found infected.