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What is ProBalance? Also known as 'Process Balance', it is a way to dynamically adjust the priority of running processes so that badly behaved programs do not degrade system responsiveness. More info...



Example: Process Lasso's ProBalance improves system responsiveness (green) during a high load via process priority optimization.

Want to see the benefits of Process Lasso's ProBalance?
Try our new graphical demo!

Automated process priority optimization
Keeps your PC responsive!

[ Download for Windows ] [ Download for Windows x64 ] [ Registered user downloads ]

Process Lasso is a unique new technology that will, amongst other things, improve your PC's responsiveness and stability. Windows, by design, allows programs to monopolize your CPU without restraint -- leading to freezes and hangs. Process Lasso's ProBalance (Process Balance) technology intelligently adjusts the priorities of running programs so that badly behaved processes won't substantially impact the responsiveness of your PC.

Process Lasso also offers an assortment of ways to take full control of how your CPUs are allocated to running programs. You can choose at what priority processes should run, and which CPUs should be assigned to them. You can also disallow certain programs from running, log all programs run, automatically restart programs, and so much more.

  • ProBalance dynamic priority optimization
  • Persistent priorities and CPU affinities
  • Instance count limits
  • Disallowed processes
  • Keep processes running (auto-restart)
  • Unique system responsiveness graph
  • Prevent PC sleep for designated processes
  • Differentiate between svchost.exe instances
  • Extremely low resource use
  • Stand-alone process management engine
  • Both 32-bit and 64-bit builds for maximum efficiency
  • Event logging
  • MUCH more...

Once you install Process Lasso, it'll just start working. More advanced users can tweak the configuration, but you needn't touch anything to have it instantly improve your system responsiveness and prevent stalls in high load situations.

Process Lasso runs on all editions of Windows 2000, XP, 2003, 2008, Vista, and Windows 7.

Graphical Interface Features

  • Basic task manager capabilities for convenience
  • Displays per-process CPU history
  • Change process settings and rules
  • Act on multiple processes at once
  • System tray icon with notifications
  • Almost no resource consumption when minimized
  • Does its job without fancy graphics to dazzle you


Easy to use menu system allows for setting of process defaults and other options.

More screenshots ...

Process Lasso is written in native C++, not .NET. This means it consumes very few system resources - considerably less than any similar software. Furthermore, the process management engine is independent from the GUI. This means it can run without the graphical interface (GUI).


The system tray icon is actually part of the GUI. The process management engine is completely silent.


ProBalance Configuration Dialog

Beta notice:
The beta release contains the latest and greatest code, but may have bugs and/or fixes to bugs. We recommend using the latest final release instead of latest beta unless you are having troubles with the final, or are just adventurous.