Prio - Process Priority Saver!

Process Hacker is a feature-packed tool for manipulating processes and services on your computer. A free and open source process viewer with powerful process termination and memory searching/editing capabilities.

Process Lasso is NOT yet another task manager. It is a process priority optimization and system automation utility. Priority optimization, affinity optimization, core optimization, automated rules, automated power schemes, you name it and Process Lasso has it. Although most consider Lasso the ultimate process priority optimizer, it does so much more!

System Monitor is a tool to manage running processes and monitor system resources.

Easy to use application for monitoring and controlling running processes.

This tool controls programs, disk, CPU. Replace task manager, tweak and tune up XP or Vista. Speed up windows startup. Get rid of spyware and viruses.

KillSwitch is an advanced system monitoring tool that is apart of Comodo Cleaning Essentials (CCE) it allows users to identify, monitor and stop potentially unsafe processes that are running on endpoint systems. Uniquely for a product of its type, KillSwitch leverages Comodo's huge whitelist database to isolate untrusted processes with an extremely high degree of accuracy – improving IT operational efficiency by reducing false positives and cutting the amount of time spent troubleshooting an endpoint machine. »

LXTask is the standard task manager and system monitor of LXDE. It starts via Ctrl+Alt+Del and is extremely lightweight.

A windows 8-like Task Manager for Windows 7 ,work in progress!

https://www.oneperiodic.com/products/processes/

SterJo Task Manager is a FREE and advanced utility for process managing which allows you to get details on everything that’s running on your computer. The program is divided in several sections covering the main parts of each system. “Tasks” section shows all running and not responding applications. “Processes” gives you more details about each process and also could show the slowing down of the CPU with an option to terminate the process and retrieve the speed of the computer.

PrcView is a process viewer utility that displays detailed information about processes running under Windows. For each process it displays memory, threads and module usage. For each DLL it shows full path and version information. PrcView comes with a command line version that allows you to write scripts to check if a process is running, kill it, etc.

Security Process Explorer

Kiwi application monitor is a small program which lets you monitor your applications/processes, Windows and User activity...

Process Manager for Windows is a utility which allows you to to set process priority, minimize windows to the system tray, and more—all via taskbar window button right-click menus.

Tasks Explorer is a freeware opensource computer program providing functionality for collecting extended information about processes running in system in real time.