Process LassoReal-Time Optimization & Automation

Watch It In Action Get Free or Buy Pro

Process Lasso can be FREELY used INDEFINITELY. See details of Free vs Pro HERE.

PL ScreenshotPL ScreenshotInstall OptionsProBalance Insights
ProBalance -

Unique process optimization technology safely and effectively improves PC responsiveness!

Gaming Mode 2.0 -

Activate the Bitsum Highest Performance power plan for max performance.

Optimal Configuration -

Native 64-bit code for maximum performance on Workstations and Servers!

IdleSaver -

Max performance when active, but conserve energy when the PC is idle!

Multiple Languages -

Localized to: English, German, French, Polish, Finnish, Italian, PTBR, Russian, Japanese, Chinese.

Compatible -

Supports Windows XP to Windows 10, and all Server Variants (Server Edition only).

Automation -

Automate & control process priorities, CPU affinities, power plans and more!

Real-Time Apps -

Ensures optimal performance at all times for real-time applications!

SmartTrim -

We are not a fan of RAM optimization, so created a SAFE and CONSERVATIVE algorithm for those who do need such.

Safe, Conservative, Small, and Time-Tested

Free Lifetime Updates!

Process Lasso Pro


Windows, by design, allows programs to monopolize your CPU — leading to hangs, micro-lags, freezing (even crashing) and delays in your keystroke and/or mouse actions.

Process Lasso is NOT yet another task manager…

Instead, it is an advanced process priority optimization and system automation utility. It offers process priority optimization, CPU core affinity optimization, power plan automation, automated rules, and so much more; you name it (within this area), and Process Lasso does it!

It’s most popular feature is the unique process optimization technology called ProBalance (Process Balance) that will improve your PC’s responsiveness and stability by making intelligent dynamic adjustments to the priority class and/or CPU affinity of problematic background processes.

ProBalance will intelligently adjust process priorities and CPU affinities to positively impact the responsiveness of any Windows PC and/or Server (all Windows Server variants).

Process Lasso – Safe, Proven, Time-Tested – Test it for yourself!

Process Lasso offers state of the art real-time PC optimization and automation. We do so through intelligent real-time algorithms we’ve pioneered, and also by user-created rules.


Keep Windows PCs responsive during high CPU loads with ProBalance
Optimize and automate process CPU affinities
Optimize and automate process CPU priority classes
Optimize and automate process I/O priority classes
Optimize and automate other process settings
Limit hyper-threaded core use
Disallow processes from running
Limit number of instances of a process (even per-user)
Log and audit process activity
Auto-restart processes
Broad CPU compatibility (SMP, NUMA)
Monitor PC Responsiveness /w our proprietary algorithm
Light-weight native C++ code with negligible resource use
Efficient stand-alone core engine that can run as a service
Separate Graphical User Interface goes into sleep mode when minimized, or can be closed completely
Does NOT inject hooks anywhere outside itself or change persistent system settings
 INI configuration for easy on-demand changes
 Unattended install and headless operation
 Extensive Documentation
 Quick Start Guide for Audiophile Servers
Compatible with all Windows Server variants!

GUARANTEED – 100% Clean Installers. No Installer Bundles. No Toolbars or other Junk. No Surprises.  Just clean, quality software. We do NOT resort to dirty tricks to generate revenue. Instead we charge a fair price for an honest product. Please support Bitsum so that we can continue innovating!

45 Day Money-Back Guarantee!

We stand behind our software 100%

Customer and User FeedbackSee what others say about Process Lasso

Lasso Pro on win 8.1 is FANTASTIC!!!

Hi, first of all I want to say I have tried and used many tweaks in my quest for audiophile nirvana and Lasso Pro on win 8.1 is FANTASTIC!!!

Process Lasso made a larger impact on my computer audio system than other products I had tried!!

I kid you not! Your software was on my machine as a trial for 5 minutes and I heard such an improvement in Sq and speed and way lower jitter the entire track was transformed, I purchased it!

Had to have it! Great job guys!! Thanks for your time and support!


Tom Pinckard

SmartTrim Intelligent RAM Optimization

I just found out about Process Lasso yesterday – I had read about it on several sites before.

I broke down yesterday and installed it because I was desperate for an alternative to the Windows default task manager.

All I can say is… Wow. I should’ve never doubted you guys.

I love Process Lasso and I’ll definitely do anything I can to spread the word.


Bitsum does it again.

Thank you for your hard work on this.


Wow! I have never heard of this service before.

I tried it out tonight and its optimization is night and day.

Clearly this service is marketed to people with a little tech know how.

Will Buy after my trial!


Thank you good sirs for your sweet work.

I have been using your software for some time now and I am loving it.

It gives that additional look under the hood that I desire.

The smart trim feature looks promising and I am waiting for your next step up with 8.0.

Jonas Laukemper

I have been running Process Lasso on my desktop and laptop pc’s for at least 2yrs.

I find it uses very little in the way of resources and keeps the PC running smoothly.

The process has not installed any malware, crap-ware like a lot of free tools do, it just runs in the background adjusting load priorities on the PC’s CPU automatically.


Great Software!!!

I and our staff members, have tested Process Lasso and have gotten very positive result for Computer Audiophile.

It seems to clean-up some left over stuffs like we clean the leaves on the driving way in late Fall.

Seung-Hyun Yoon (from Korea)

Jeremy, thanks

Bought !

This is first day I have really had a chance to listen to my system with Process Lasso. It is like all the audio software ( Jplay – AO – Fidelizer Pro) has now finally snapped into focus – magic !

I have used absolutely minimal configuration (as in previous post) and let Pro Balance do its thing – It’s VERY tempting to over-configure everything – but ProBalance is a LOT smarter than me and it does a terrific job on its own.

I was a bit sceptical of how Process Lasso would make much difference to a system that was only running audio in the first place – but now I’m well and truly sold.

Well done Jeremy !

Just a quick note – since installing PL, both my CPUs are now running about 5 degrees cooler !

In my company we run a Citrix XenApp solution based on Windows terminal server

…and several years ago had a lot of problems with users hogging CPU resources, to the detriment of other users on the same server. Citrix has its own CPU fair sharing system, but it is really bad and with Windows Server 2008 R2, Microsoft also introduced one, but again not very good.

Searching for something better we stumbled upon Process Lasso and after a short test we bought it and implemented it on all our Citrix XenApp servers. In our production environment we currently have around 250 servers, serving some 3000 concurrent users.

When installed as a service Process Lasso turned out to be very effective at ensuring, that CPU is shared fairly among all users. A lot of processes you would normally not associate with high CPU loads, like Outlook or Acrobat Reader, can easily use enough CPU that it affects the other applications the user is running and in worst case other user’s applications. Multi thread applications like Excel can be particularly nasty, as it will happily use every available bit of CPU it can get its hands on, which will literally kill an entire server and make it unresponsive.

After introducing Process Lasso we very rarely see stalls or hangs caused by CPU load, even with all the Internet Explore processes frequently using lots of CPU due to flash banners usually :).

Being able to exclude process from ProBalance is also very valuable, as we do not want certain applications like our ERP system (SAP) to be restricted.

I have yet to hear about any other product that comes close to what Process Lasso does and for the price this really ought to be standard in any Citrix XenApp installation. The support is outstanding and request for new features are handled swift and very professionally.

Today I can’t even imagine running our Citrix XenApp installation without Process Lasso on it, since it would have a huge detrimental effect for the experience our users have using the system. So if you have never thought about using Process Lasso in an enterprise environment, especially in a terminal server environment, I can highly recommend trying it out.

Karsten Rechnagel - System Administrator
Solar A/S

ProBalance rocks :)

This is great job!

I am really feeling benefits here.

Keep up this great work ! :)


Purchase Process Lasso today.

I am a board certified clinical & forensic psychiatrist plus acupuncturist. Many times, what is rated # 1-2-3 is not always the best.

I have downloaded and tested every available Optimization Software going back to Windows 98 and up to Windows 7 Home Premium.

Process Lasso Pro, works 100% to balance my CPU & RAM, plus frequent updates and outstanding service seven days per week.

I trust Process Lasso Pro, 100% to optimize my computer & laptop. I would trust my life with this software.

Don’t be fooled by reviews & ratings (for other products), Don’t be penny wise and pound foolish. Optimize your computer today like you would protect the lives of your own family. Purchase Process Lasso today.

Best regards,

Dr. Hubert Hechabarria
Rep. of Panama

I can’t thank you enough for this amazing piece of software!

I’ve recommended it to so many friends, and helped them tweak their PC’s, breathing fresh life into them!

When you’re poor, things like this that give your gear extra years of life are divine gifts!

You rock! :D


This software certainly keeps my old PC working smoothly.

Without Process Lasso it certainly gets choppy.

R. Sullivan

I absolutely love this program.

I use Fruity Loops loaded with a LOT of heavy plugins (full orchestras, multiple amps, Shredder II guitars, etc.) and it’s always given me small problems every now and again when rendering which would create small noise anomalies in the song because it seems no matter what I did I couldn’t allocate enough CPU power to it, even with 8 CPUS and manually setting the Priority.

I install Process Lasso, set everything to High for Fruity Loops and done…no more problems whatsoever.


John Ruff

Improve system response time and stability

Elena-OprisWith the help of Process Lasso you can improve the operating system’s response time and overall stability. It automatically adjusts the priority class for active programs via ProBalance, the app’s proprietary algorithm, in order to prevent them from hogging resources.

The interface consists of a regular window containing a list of all processes and active ones, along with a graphical representation that shows a history of the processor use, responsiveness, process restraint and memory load.

The list of active processes shows the name, user name, application name, ID, assigned rules, priority class, CPU affinity, I/O and memory priority, CPU level and average level (in percentage), CPU time, restraint history, memory (private bytes and working set), number of threads allocated, handles, page faults, and other relevant information.

For each process you can set the priority class (by default, Windows dynamic thread priority boost is enabled), CPU affinity, I/O and memory priority, and application power profile (e.g. balanced), as well as limit the number of instances, enable it to keep running and to restart if terminated, and prevent computer hibernation while it’s active.

In addition, you can exclude a process from the ProBalance restraint, foreground boost, and Energy Saver (lets you run the system in high performance mode and conserves power in idle state), mark it as a game or media player process (when the gaming/multimedia mode is enabled), trim its virtual memory, as well as restart or terminate it (by force, if necessary).

Furthermore, you can configure rules for adding a processor to a watchdog monitor list (e.g. for CPU or virtual memory, monitoring time range), as well as log all activity to file. These are just few of the options available for advanced users who would like to tweak Process Lasso.

The feature-rich application is surprisingly light on the system resources, has a good response time, and rapidly commits changes. We have not come across any issues throughout our evaluation. While Process Lasso packs advanced settings for experienced users, letting them fully customize each part of the app, the utility may also be run with default options, since it intelligently prioritizes high-demanding programs and terminates them if necessary. Less experienced users can look into help documentation.

5.0/5 – Stars

Reviewed by Elena Opris

My computer was slow with Windows10

…this software has improved performance, congratulations, thank you very much.

Antonio Benevides

I was a bit skeptical

I was a bit sceptical of how Process Lasso would make much difference to a system, but now I’m well and truly sold.

I’ve recommended it to so many friends, and helped them tweak their PC’s, breathing fresh life into them!

I can’t thank you enough for this amazing piece of software!

Atanas Mihaylov

best app,

prolasso is first choice for all pc for me

Thank you.

It’s nice to upgrade to new version.

Best regards


Keep up the good stuff

Keep up the good stuff guys. I have an older Toshiba E1-1200 laptop struggling through Windows 10(it tents to pin Core 0 at 100% and thrash the old 5200RPM drive), and I was about to give up and put 7 back on it, but ProcessLasso saved it. It uses a bit more CPU resources itself than I’d like, but that;s fine, because it keeps all the hoggish processes in check. Well, bar System Interrupts. Think you could work on controlling that? On OEM systems with weird USB drivers, it can murder performance.

Ashley Robinson

Perfect for Audio Engineers

My PC is my bread and butter as an audio engineer. When my system started having issues and my audio applications were crashing, I spent several days trying to nail down the problem. Noticing that half my cores were parked for some odd reason, I stumbled upon ParkControl, installed and configured it, and INSTANTLY, all of my issues disappeared! This thing was a life saver for me!


Operating systems come and go

Operating systems come and go – but Process Lasso always remains.

David Stewart Jones

You made my laptop work for me, instead of me working for my laptop

I simply Love your product: Process Lasso; it has ridded me of long lasting program delays and other frustrations. I would recommend your product to anyone with Windows machine. Cheers!

Joseph Sarnecki

Amazing !

If there is only one program you ever install on your system, it has to be “Process Lasso” I have used computers for decades, and even now, on a premium laptop with a clean install, the difference is amazing. With nothing to configure at all, it just works !!

john O'Hara

Experience with Process Lasso and Audio


First of all would I like to thank Jeremy for a great piece of software  This testimonial is a very long, so if you only want to know about Process Lasso please scroll to the end. Back in 2012 did I use a 5.500€ Audio Meca CD player on my HiFi setup. I installed JRiver on a Win7 laptop, connected it to my M2Tech USB to SPDIF converter via a standard USB 2.0 and then into my DAC. The performances of this PC configuration was far from the performances of my Audio Meca CD player, so I did not work with PC playback for over a year. In spring 2013 did I tested an External clock on my M2Tech USB to SPDIF converter, this raised the sound quality a little, by making the sound more open and with more “air” in upper midrange and treble. I then started to test different USB cables and ended with an Acoustic Revive USB cable. I then got curious to see if the PC hardware could make any differences, I used a GigaByte mATX motherboard with a 3,1 GHz Intel Core i7. Next step was replacing the switch mode power supply with a custom made linear power supply with a 8*22.000uF cap bank and discrete regulators. This upgrade made the sound more analog. Then I came across a Taiwanese person called Paul Pang, he has a lot of PC upgrading hardware devices. I installed one of his OCXO precision clocks on the motherboard, this upgrade also gave a more analog sound. I then changed the Win7 with a Microsoft Server 2012 R2 64bit. The OS upgrade itself did not change anything, but when I installed Audio Phil’s Audiophile Optimizer 1.40 This made the sound more 3D and organic. I started with magnetic hard drives and ended with two SSD drives each with its own external OCXO precision clock. One drive for OS and media software and another dedicated drive for music files. I also installed a dedicated USB card for the M2Tech USB-SPDIF converter and this card also has its own OCXO precision clock. This gave a more detailed sound and also gave a better flow in the rhythm of the music. As media software do I use JRiver 20.0.27, I control JRiver via JRemote on my iPad. JRiver 20.0.27 still supports ASIO and therefor can I use JPLAY 6.2 with my JRiver. I have read that some people do not like JPLAY, I like it because in my setup does it make the sound more 3D and organic. I then installed Fidelizer Pro and did not expect any sound improvement, due to the heavily optimized hardware and software. I was wrong! Fidelizer Pro software did improve the sound, it removes digital glare which makes the server sound more natural. Then I came across Process Lasso, also here did not expect any sound improvement, but I was again wrong Process Lasso also removes digital glare from the sound. I have not tried it, but I guess that Audiophile Optimizer and Process Lasso could do the job. Again I am not disappointed in having invested in all three Audio optimizing software (Audiophile Optimizer, Fidelizer Pro and Process Lasso) because they all contributed to better sound in my setup  My PC Media Server has surpassed the sound performances of my Audio Meca CD player long time ago. BR Jacob Land Jensen Denmark

Jacob Land Jensen

Memory and processor optimization? Meh.

Thats what I thought anyway, until I tried Process Lasso. I’m on a tight budget but I was impressed by the improvement to the responsiveness of my laptop that I decided that it was a no brainer purchase. I use (abuse?) my laptop intensively, After Effects, Ableton Live, Guitar Rig and dozens of software synths without dropout, stuttering, lockups and the like. The best software investment I ever made, Seriously.

Rob Tucker

Dell D250 – Dramatic Difference with Process Lasso

I have an old Dell D520 with an Intell T5500 cpu running at 1.66Ghz. This computer originally came with Windows XP. I upgraded to Window 7 a long time ago but it ran slow…so I put on a shelf and forgot about it.

During the last week of “Windows 10 free” I upgraded all of my personal and family computers and the computers in my office (I am not an early adopter).

For the heck of it I installed Windows 10 clean on this old Dell 520 just to see what would happen… and it ran like crap.
The processor was maxed out at 100% all the time. I was just about to put it back on the shelf and forget about it when I thought, “install Process Lasso and see what happens”.

Well, I am not sure how long it took to install because I gave up after a half an hour and went home. I came back into the office this morning and fired it up and the processor is 0% at idle, every app fires up like a new computer and it is 100% usable.

I have been using Porcess Lasso for years and I install it on every computer that is brought to me for repari, but I have never seen such a dramatic difference in a machine as I did today with this old Dell. Unbelievable! Love the product.

Ben M

Ben M

Long Time Process Lasso User – Fantastic Product, Fanatical Support!

We’ve been using process lasso on our primary workstations for over 2 years, and have seen the product continue to improve and keep up with the constant evolution of the micro processing landscape.

We first purchased the product to use on Dual E5-2697v2 Workstations, which running HT mean’t 48 cores. Upon installation, the program wasn’t quite yet ready for the “just released” 12 core/24 core HT processors, especially run on a dual assembly.

The support staff quickly responded, and we were blown away that with just 2 or so weeks they had an entire new release ready in Beta based on our feedback.

Since then, the product just keeps getting better as they refine the process balancing metrics, restraints, and the ability to apply custom rules and exceptions to processes, programs, and the like.

I consider it an essential application in our software arsenal, especially on our larger 48 core + workstations running 128 GB of ram.

Running VMWare Workstation Pro 12, we many times have a dozen or more VMs running, all running complex tasks- CPU core parking, memory trimming, all become crucial to performance. In addition, it allows us to set restraints so that in the event a workstation running multiple VMs is hit with multiple complex assignments at once, the Host will not lock up- rather Process Lasso will adjust CPU affinities to keep the HOST services running and avoid lockdown (which can easilly happen without these features).

The product works. The support, ultra responsive, we are, simply put- impressed.

PS. The only thing I think the program needs now– functionality aside– as it seems to handle everything we throw at it- is skins. Different skins would be a nice touch.

Martin Andrews

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