'D Task Manager', and 'Twin 2 Die'

D Task Manager

Engineered to give additional functionalities that the Windows bundled TaskManager does not have, like three different ways to close a process, the ability to suspend and reactivate a process (as in Linux), and the chance to select more than one process.

http://dimio.altervista.org/

Twin 2 Die

Vistanita Twin2Die was designed to find true duplicate file using fast byte-to-byte comparison. You may not realize there are many duplicate files in your storage.  The file may be duplicated when you make a backup, downloading the same file, etc. When there are only a few duplicate files, it is possible to locate and delete them manually, but when there are hundreds, even thousands of duplicate files, to manually locate and delete is almost impossible. Enter Twin 2 Die.

http://www.vistanita.com/Twin2Die/introduction.php