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Last Update:

12 Jul 2018

Package Maintainer(s):

Software Author(s):

  • Jeremy Collake


Prioritize Process Manager Execute Priority Optimizer admin

Process Lasso

  • 1
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  • 3 | Updated: 12 Jul 2018



Downloads of v



Software Author(s):

  • Jeremy Collake

  • 1
  • 2
  • 3
Process Lasso

  • 1
  • 2
  • 3

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Scan Testing Resulted in Flagged:

This package was submitted (and approved) prior to automated virus scanning integration into the package moderation processs.

We recommend clicking the "Details" link to make your own decision on installing this package.


To install Process Lasso, run the following command from the command line or from PowerShell:


To upgrade Process Lasso, run the following command from the command line or from PowerShell:


To uninstall Process Lasso, run the following command from the command line or from PowerShell:


NOTE: This applies to both open source and commercial editions of Chocolatey.

1. Ensure you are set for organizational deployment

Please see the organizational deployment guide

  • Open Source or Commercial:
    • Proxy Repository - Create a proxy nuget repository on Nexus, Artifactory Pro, or a proxy Chocolatey repository on ProGet. Point your upstream to Packages cache on first access automatically. Make sure your choco clients are using your proxy repository as a source and NOT the default community repository. See source command for more information.
    • You can also just download the package and push it to a repository Download

3. Enter your internal repository url

(this should look similar to

4. Choose your deployment method:

choco upgrade plasso -y --source="'STEP 3 URL'" [other options]

See options you can pass to upgrade.

See best practices for scripting.

Add this to a PowerShell script or use a Batch script with tools and in places where you are calling directly to Chocolatey. If you are integrating, keep in mind enhanced exit codes.

If you do use a PowerShell script, use the following to ensure bad exit codes are shown as failures:

choco upgrade plasso -y --source="'STEP 3 URL'"

Write-Verbose "Exit code was $exitCode"
$validExitCodes = @(0, 1605, 1614, 1641, 3010)
if ($validExitCodes -contains $exitCode) {
  Exit 0

Exit $exitCode

- name: Ensure plasso installed
    name: plasso
    state: present
    source: STEP 3 URL

See docs at

chocolatey_package 'plasso' do
  action    :install
  version  ''
  source   'STEP 3 URL'

See docs at

    Name: plasso,
    Source: STEP 3 URL

Requires Otter Chocolatey Extension. See docs at

cChocoPackageInstaller plasso
   Name     = 'plasso'
   Ensure   = 'Present'
   Version  = ''
   Source   = 'STEP 3 URL'

Requires cChoco DSC Resource. See docs at

package { 'plasso':
  provider => 'chocolatey',
  ensure   => '',
  source   => 'STEP 3 URL',

Requires Puppet Chocolatey Provider module. See docs at

salt '*' chocolatey.install plasso version="" source="STEP 3 URL"

See docs at

5. If applicable - Chocolatey configuration/installation

See infrastructure management matrix for Chocolatey configuration elements and examples.

This package was approved as a trusted package on 12 Jul 2018.


Process Lasso is a tool designed to manage and edit how your processes and services run.

It offers a robust list of capabilities including default process priorities and affinities, termination of disallowed processes, instance count limits, a system responsiveness graph, logging of processes, keep select processes running (auto-restart), and much more.


  • ProBalance dynamic priority optimization
  • Persistent (sticky) 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 (uses as little as 1MB of RAM)
  • Event logging

Package parameters

To pass parameters, use --params "''" (e.g. choco install packageID [other options] --params="'/ITEM:value /ITEM2:value2 /FLAG_BOOLEAN'").
To have choco remember parameters on upgrade, be sure to set choco feature enable -n=useRememberedArgumentsForUpgrades.

  • /language: - This indicates the language to use. - defaults to "English"
  • /gui_start_type: - This indicates whether to start the GUI at login for ALL users (all), for only the current user (current), or neither (manual). The current user is the user context in which the installer is running. - defaults to "all,uac"
  • /governor_start_type: - This indicates whether to start the core engine (processgovernor) at login for ALL users (all), for only the current user (current), or neither (manual). The current user is the user context in which the installer is running. - defaults to "all,uac"
  • /launch_gui - This indicates whether or not to launch the GUI after installation. Even when the GUI is launched, it remains minimized to the system tray. - if not passed defaults to "false"
  • /logfolder: - This indicates to use a global log folder for ALL users on the system. By default, each user has his or her own log folder in their respective application data directory. However, it is sometimes desirable to consolidate all log events into a single log folder. Be sure that this log folder is writable by all users on the system. - defaults to "%appdata%\ProcessLasso\logs"
  • /configfolder: - This indicates to use a global configuration folder for ALL users on the system. By default, each user has his or her own configuration in their respective application data directory. However,it is sometimes desirable to use the same configuration for all users, and is required when the governor is run as a service. Be sure that this configuration folder is at least readable by all users, and writable by those who you wish to allow configuration changes. - defaults to "%appdata%\ProcessLasso\config"


  • This will always install the latest version of Process Lasso, regardless of the version specified in the package.

  • When using a user-defined config and log path, we recommend storing the config in a sub-folder, e.g. “C:\ProcessLasso\Config” and the logs in another sub-folder “C:\ProcessLasso\Logs”. The reason we suggest this is because, otherwise, every time the log is written to, it will trigger a file system change notification event on that folder and cause the configuration file to be checked to see if it changed. It won’t be reloaded, so not much overhead, but a little. The granularity of file system change notifications in Windows is limited to folders, thus putting the config in it’s own folder makes sure that only writes to it cause a change notification event.

  • There is an option for /governor_start_type: option as a service, but at the current time this package does not support the option to start the governor as a service.


$ErrorActionPreference = 'Stop'
$ServerOS = (Get-WmiObject -Class Win32_OperatingSystem).Caption
$pp = Get-PackageParametersBuiltIn

$packageName = 'plasso'
$url = ''
$url64 = ''
$checksum = '4d8f297e2adfa6c4cb446f2a7bc7e5b74ba9a0cb850738ab54977ff4ec067b58'
$checksum64 = '3937f74cfce336b309f6a76ef74c3819cad88bb9426e12f891f37c7617a3b705'

$checksumType = 'sha256'

$surl = ''
$surl64 = ''
$schecksum = 'e2a91427d331ffe76255f311dd5fb88968df7487673107fe0eee5c835bfb5f3a'
$schecksum64 = '438b46e653c8b0a1020b43fd0572e3814d5653267fe13afa4be13220a57792fd'

if (!$pp['language']) { $pp['language'] = 'English' }
if (!$pp['gui_start_type']) { $pp['gui_start_type'] = 'all,uac' }
if (!$pp['governor_start_type']) { $pp['governor_start_type'] = 'all,uac' }
if (!$pp['launch_gui']) { $pp['launch_gui'] = 'false' }
if (!$pp['logfolder']) { $pp['logfolder'] = "$env:APPDATA\ProcessLasso\logs" }
if (!$pp['configfolder']) { $pp['configfolder'] = "$env:APPDATA\ProcessLasso\config" }

$packageArgs = @{
  packageName    = $packageName
  fileType       = 'exe'
  url            = $url
  url64Bit       = $url64
  silentArgs     = "/S /language=$($pp['language']) /gui_start_type=$($pp['gui_start_type']) /governor_start_type=$($pp['governor_start_type']) /launch_gui=$($pp['launch_gui']) /logfolder=$($pp['logfolder']) /configfolder=$($pp['configfolder'])"
  validExitCodes = @(0)
  checksum       = $checksum
  checksum64     = $checksum64
  checksumType   = $checksumType
  checksumType64 = $checksumType

if ($ServerOS -match "Server") {
  Write-Host 'Installing Server Version'
  $packageArgs.url = $surl
  $packageArgs.url64Bit = $surl64
  $packageArgs.checksum = $schecksum
  $packageArgs.checksum64 = $schecksum64
  Install-ChocolateyPackage @packageArgs
} else {
  Write-Host 'Installing Workstations Version'
  Install-ChocolateyPackage @packageArgs
$ErrorActionPreference = 'Stop'

$packageName = 'plasso'
$programUninstallEntryName = 'Process Lasso*'

$registry = Get-UninstallRegistryKey -SoftwareName $programUninstallEntryName
$file = $registry.UninstallString

$packageArgs = @{
  packageName    = $packageName
  fileType       = 'exe'
  silentArgs     = '/S'
  validExitCodes = @(0)
  file           = $file

Uninstall-ChocolateyPackage @packageArgs

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Version Downloads Last Updated Status
Process Lasso 330 Friday, May 4, 2018 Approved
Process Lasso 289 Thursday, March 29, 2018 Approved
Process Lasso 283 Tuesday, March 13, 2018 Approved
Process Lasso 338 Tuesday, January 9, 2018 Approved
Process Lasso 286 Friday, December 8, 2017 Approved
Process Lasso 330 Thursday, September 7, 2017 Approved
Process Lasso 262 Saturday, September 2, 2017 Approved
Process Lasso 282 Monday, August 21, 2017 Approved



Discussion for the Process Lasso Package

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  • Tell us what you love about the package or Process Lasso, or tell us what needs improvement.
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