Process Lasso (32-bit) Beta

4.0 out of 5 stars 4.0 (1044 votes)


Windows 7/8/10/Vista/XP / Shareware; $32.95 / 42,932 downloads

Process Lasso is a unique new technology that improves PC responsiveness during high CPU loads. It does this through dynamic adjustments to process priorities. This feature is called ProBalance, dynamic priority optimization. Instead of boosting foreground priorities, which is ineffective and potentially detrimental, Process Lasso temporary lowers the priorities of select background processes when they may be interfering with system responsiveness. A graphical demo is available on Bitsum's site that demonstrates how this feature can save you from a total PC stall in a worst case scenario.

For more advanced users, Process Lasso allows automation and persistence of various process settings. One can set save CPU affinities, process priority classes, I/O priority, memory priorities, and application power profiles. These settings get re-applied each time the process is run. Users can also limit the number of instances an application can have, or disallow processes from running entirely. More advanced watchdog rules can be created to take any number of actions based on quotas and thresholds. For instance, trim the working set when a process's working set exceeds a specified amount, or lower the process priority class when an application exceeds a particular amount of CPU utilization for a specific duration.

This is the 32-bit semi-free build. It never expires, and core functions such as ProBalance, default priorities, and default affinities work indefinitely. With this semi-free edition, you may have to tolerate some non-intrusive nags, and advanced features may be disabled over time.

  • Homepage

    Process Lasso

  • Limitations


  • Uninstaller


  • Latest Changes

    - Much better ProBalance Insights with new Frequency of Action (same as CPUBalance)

    - Filter process view to list only the processes you are interested in

    - Pause list and graph by pressing spacebar

    - Quick-terminate is back by menu item (or DEL key)

    - Remove graph ‘map/legend’ BMP and replaced with drawn text for easier localization

  • Other Versions

    Process Lasso (64-bit)

    Process Lasso Server (32-bit)

    Process Lasso Server (64-bit)

Reviews of Process Lasso (32-bit)

  1. 5 out of 5 stars

    Reviewing 7.8 (Jan 14, 2015)

    I recently upgraded one of the PC's I have PL on to a latest chip with 16 GIG of DDR3 memory, I was thinking PL probably wouldn't be needed but after some experimentation I found it's still useful esp. for example when transferring multiple & large amounts of files onto external drives or over a network - PL keeps everything running smoothly & I really missed it when it wasn't installed - A worthy 5 stars - Use the 64 Bit version with 64 bit Windows.

  2. 5 out of 5 stars

    Reviewing (Sep 12, 2012)

    Well worth buying esp. the family edition for 5PC's ($34.95 = £21 to me) which I'm going to invest in - It does make a difference even on a fast PC.

    @jcollake - My review below was OTT - Sorry about that, it didn't come out the way I meant it - The point I was trying to make was just if you like Process Lasso buy it you won't regret the purchase & it's not expensive.

  3. 5 out of 5 stars

    Reviewing Beta (Jul 13, 2012)

    I use Process Lasso Pro (purchased a few mos. ago) & used the regular version for a long time prior to that. I run WinVista SP2 on a Dell Duo-core computer & Process Lasso Pro does a good job for me without problems. I have ran almost every version of process Lasso since I began using it (alphas, betas, etc.) without problems & the program has helped me have a much more pleasant computer experience. My experience has been that Process Lasso does what it says it will do, nothing more or less, without creating problems & I couldn't ask for more than that. Keep up the good work--kudos!!

  4. 4 out of 5 stars

    Reviewing Alpha (Jul 13, 2012)

    I apologize if the below seemed defensive, I just like to make it clear that I try to do my best to walk the fine line between supporting my family and giving my product away as freely as I'm able to. Like I said, that is why it is labelled Shareware. I thank all users who use ANY version of my software, paid or not. It is an honor for me and my small company.

  5. 5 out of 5 stars

    Reviewing (Jul 3, 2012)

    @Music4Ever, that is why I clearly label it Shareware here and at other download sites. SHAREWARE. Even though it NEVER EXPIRES, I get your argument, which is why I DO NOT put it in the FREEWARE category ... This cost me lots of exposure, but it is fair enough. I would also like to add that Bitsum does NOT use deceptive bundles in its installers, FWIW.

    How annoying are the 'nags'? Well, you see ONE when the program starts (usually only at boot). It has NO TIMER. Click right on past. That is ALL.

    How restrictive are the features? MOST ALL the popular features NEVER EXPIRE, including ProBalance and Default Priorities and CPU Affinities. The full list is disclosed at .

    So, there is no subterfuge, and in this day and age - I think that counts for something. Yes, sometimes you must pay for software. I simply must pay my rent. That's all there is to it. I'd rather be up front and honest, than tricky and deceitful.

Discuss Process Lasso (32-bit)

  1. May 6, 2009 - 12:46 AM

    Basically, Process Lasso is a VERY VERY light weighted software. I have tried several other similar softwares, but they really cannot achieve what Process Lasso can achieve. Basically, Foreground Process Thread Priority Boost is unique, and cannot be found in other similar type of softwares. One software called "Process Priority Master" which claims itself to be the best, I have tried it myself but it's nothing but just a bloatware, a real example of bloatware. It takes like 30%+ CPU in the background all the time !!! Jeremy never claims his softwares are the best, because Jeremy has a good and professional attitude, which we all should learn from him. I can tell, no other similar softwares up to the current date, performs better than Process Lasso.

  2. Apr 20, 2009 - 8:20 PM

    This software is NOT crippleware. 99% of the features in the Pro build are also in the free build. If you take the time to look, you will see this is true.

  3. Feb 12, 2009 - 8:46 AM

    This program is crippleware. I would rather use a lesser program than a crippled program.

  4. Feb 10, 2009 - 1:34 AM

    to your post us3r:
    you rated the software with two and speak as if you never tried the software for yourself - talking only about that the price is too high for you to effort and not even mention a free alternative (cause there is no). I really wonder what those commends should cause, why and for what ?

    Reviewing 3.45.4 Beta (Feb 4, 2009)

    This program doesn't offer much more than similar tools which are completely free, yet author want almost 20$ for a copy whether you are commercial user or home user or student. The life time license doesn't speak to me since I remember the development of these application stopped like for two years around version 2.0.