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Chocolatey Package

C:\choco install webswing
C:\choco upgrade webswing 


How do I create packages? See

If you are submitting packages to the community feed ( always try to ensure you have read, understood and adhere to the create packages wiki link above.

Automatic Packaging Updates?

Consider making this package an automatic package, for the best maintainability over time. Read up at

Shim Generation

Any executables you include in the package or download (but don't call install against using the built-in functions) will be automatically shimmed.

This means those executables will automatically be included on the path. Shim generation runs whether the package is self-contained or uses automation scripts.

By default, these are considered console applications.

If the application is a GUI, you should create an empty file next to the exe named 'name.exe.gui' e.g. 'bob.exe' would need a file named 'bob.exe.gui'. See

If you want to ignore the executable, create an empty file next to the exe named 'name.exe.ignore' e.g. 'bob.exe' would need a file named 'bob.exe.ignore'. See


If you have a self-contained package, you can remove the automation scripts entirely and just include the executables, they will automatically get shimmed, which puts them on the path. Ensure you have the legal right to distribute the application though. See

You should read up on the Shim Generation section to familiarize yourself on what to do with GUI applications and/or ignoring shims.

Automation Scripts

You have a powerful use of Chocolatey, as you are using PowerShell. So you can do just about anything you need. Choco has some very handy built-in functions that you can use, these are sometimes called the helpers.

Built-In Functions

A note about a couple:

Getting package specific information

Use the package parameters pattern - see

Need to mount an ISO?

Environment Variables

Chocolatey makes a number of environment variables available (You can access any of these with $env:TheVariableNameBelow):

  • TEMP/TMP - Overridden to the CacheLocation, but may be the same as the original TEMP folder
  • ChocolateyInstall - Top level folder where Chocolatey is installed
  • ChocolateyPackageName - The name of the package, equivalent to the <id /> field in the nuspec (0.9.9+)
  • ChocolateyPackageTitle - The title of the package, equivalent to the <title /> field in the nuspec (0.10.1+)
  • ChocolateyPackageVersion - The version of the package, equivalent to the <version /> field in the nuspec (0.9.9+)
  • ChocolateyPackageFolder - The top level location of the package folder - the folder where Chocolatey has downloaded and extracted the NuGet package, typically C:\ProgramData\chocolatey\lib\packageName.

Advanced Environment Variables

The following are more advanced settings:

  • ChocolateyPackageParameters - Parameters to use with packaging, not the same as install arguments (which are passed directly to the native installer). Based on --package-parameters. (
  • CHOCOLATEY_VERSION - The version of Choco you normally see. Use if you are 'lighting' things up based on choco version. (0.9.9+) - Otherwise take a dependency on the specific version you need.
  • ChocolateyForceX86 = If available and set to 'true', then user has requested 32bit version. (0.9.9+) - Automatically handled in built in Choco functions.
  • OS_PLATFORM - Like Windows, OSX, Linux. (0.9.9+)
  • OS_VERSION - The version of OS, like 6.1 something something for Windows. (0.9.9+)
  • OS_NAME - The reported name of the OS. (0.9.9+)
  • USER_NAME = The user name (0.10.6+)
  • USER_DOMAIN = The user domain name (could also be local computer name) (0.10.6+)
  • IS_PROCESSELEVATED = Is the process elevated? (0.9.9+)
  • IS_SYSTEM = Is the user the system account? (0.10.6+)
  • IS_REMOTEDESKTOP = Is the user in a terminal services session? (0.10.6+)
  • ChocolateyToolsLocation - formerly 'ChocolateyBinRoot' ('ChocolateyBinRoot' will be removed with Chocolatey v2.0.0), this is where tools being installed outside of Chocolatey packaging will go. (0.9.10+)

Set By Options and Configuration

Some environment variables are set based on options that are passed, configuration and/or features that are turned on:

  • ChocolateyEnvironmentDebug - Was --debug passed? If using the built-in PowerShell host, this is always true (but only logs debug messages to console if --debug was passed) (0.9.10+)
  • ChocolateyEnvironmentVerbose - Was --verbose passed? If using the built-in PowerShell host, this is always true (but only logs verbose messages to console if --verbose was passed). (0.9.10+)
  • ChocolateyForce - Was --force passed? (0.9.10+)
  • ChocolateyForceX86 - Was -x86 passed? (CHECK)
  • ChocolateyRequestTimeout - How long before a web request will time out. Set by config webRequestTimeoutSeconds (CHECK)
  • ChocolateyResponseTimeout - How long to wait for a download to complete? Set by config commandExecutionTimeoutSeconds (CHECK)
  • ChocolateyPowerShellHost - Are we using the built-in PowerShell host? Set by --use-system-powershell or the feature powershellHost (0.9.10+)

Business Edition Variables

  • ChocolateyInstallArgumentsSensitive - Encrypted arguments passed from command line --install-arguments-sensitive that are not logged anywhere. (0.10.1+ and licensed editions 1.6.0+)
  • ChocolateyPackageParametersSensitive - Package parameters passed from command line --package-parameters-senstivite that are not logged anywhere. (0.10.1+ and licensed editions 1.6.0+)
  • ChocolateyLicensedVersion - What version is the licensed edition on?
  • ChocolateyLicenseType - What edition / type of the licensed edition is installed?
  • USER_CONTEXT - The original user context - different when self-service is used (Licensed v1.10.0+)

Experimental Environment Variables

The following are experimental or use not recommended:

  • OS_IS64BIT = This may not return correctly - it may depend on the process the app is running under (0.9.9+)
  • CHOCOLATEY_VERSION_PRODUCT = the version of Choco that may match CHOCOLATEY_VERSION but may be different (0.9.9+) - based on git describe
  • IS_ADMIN = Is the user an administrator? But doesn't tell you if the process is elevated. (0.9.9+)
  • IS_REMOTE = Is the user in a remote session? (0.10.6+)

Not Useful Or Anti-Pattern If Used

  • ChocolateyInstallOverride = Not for use in package automation scripts. Based on --override-arguments being passed. (0.9.9+)
  • ChocolateyInstallArguments = The installer arguments meant for the native installer. You should use chocolateyPackageParameters intead. Based on --install-arguments being passed. (0.9.9+)
  • ChocolateyIgnoreChecksums - Was --ignore-checksums passed or the feature checksumFiles turned off? (
  • ChocolateyAllowEmptyChecksums - Was --allow-empty-checksums passed or the feature allowEmptyChecksums turned on? (0.10.0+)
  • ChocolateyAllowEmptyChecksumsSecure - Was --allow-empty-checksums-secure passed or the feature allowEmptyChecksumsSecure turned on? (0.10.0+)
  • ChocolateyCheckLastExitCode - Should Chocolatey check LASTEXITCODE? Is the feature scriptsCheckLastExitCode turned on? (0.10.3+)
  • ChocolateyChecksum32 - Was --download-checksum passed? (0.10.0+)
  • ChocolateyChecksumType32 - Was --download-checksum-type passed? (0.10.0+)
  • ChocolateyChecksum64 - Was --download-checksum-x64 passed? (0.10.0)+
  • ChocolateyChecksumType64 - Was --download-checksum-type-x64 passed? (0.10.0)+
  • ChocolateyPackageExitCode - The exit code of the script that just ran - usually set by Set-PowerShellExitCode (CHECK)
  • ChocolateyLastPathUpdate - Set by Chocolatey as part of install, but not used for anything in particular in packaging.
  • ChocolateyProxyLocation - The explicit proxy location as set in the configuration proxy (
  • ChocolateyDownloadCache - Use available download cache? Set by --skip-download-cache, --use-download-cache, or feature downloadCache (0.9.10+ and licensed editions 1.1.0+)
  • ChocolateyProxyBypassList - Explicitly set locations to ignore in configuration proxyBypassList (0.10.4+)
  • ChocolateyProxyBypassOnLocal - Should the proxy bypass on local connections? Set based on configuration proxyBypassOnLocal (0.10.4+)
  • http_proxy - Set by original http_proxy passthrough, or same as ChocolateyProxyLocation if explicitly set. (0.10.4+)
  • https_proxy - Set by original https_proxy passthrough, or same as ChocolateyProxyLocation if explicitly set. (0.10.4+)
  • no_proxy- Set by original no_proxy passthrough, or same as ChocolateyProxyBypassList if explicitly set. (0.10.4+)
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