PowerPack Global Variables

Also available in CapaOne

These global variables also work in CapaOne Application Manager — on all brick parameters and inside the Execute PowerShell Snippet brick. In CapaOne there is no kit folder, so $global:Packageroot holds your files directly.

Set from the script parameters

These are set directly from the parameters CapaInstaller passes into every PowerPack script (see the # DO NOT CHANGE THESE VARIABLES block of the script templates) — available from the very start of the script, before Initialize-Variables runs.

Variable	Data type	Example
$global:Packageroot	string	C:\Program Files\CapaInstaller\Client\Packages...
$global:AppName	string	WS Ready To Use
$global:AppRelease	string	1.0
$global:LogFile	string	C:...\Logs\WS Ready To Use\Install.log
$global:TempFolder	string	C:...\Temp
$global:DllPath	string	C:...\CapaOne.ScriptingLibrary.dll
$global:InputObject	Object	The Named Pipe connection back to CiBaseAgent (see below)

$global:PSLibVersion (string, for example 2026.04.24) holds the version of PSlib.psm1. It’s set when the template imports PSlib.psm1, at the start of #### MAIN ####.

Note

$global:InputObject is how the script talks back to CiBaseAgent while it’s running. The classic CapaInstaller Agent is VBScript and can’t host a PowerShell Runspace itself, so when it hits a PowerPack it posts a job to CiBaseAgent (a .NET Framework app), which shells out to PowerPack.exe (.NET Core) to actually run the script. PowerPack.exe opens a Named Pipe back to CiBaseAgent, and that connection is what’s exposed as $InputObject — it’s what Start-PSDownloadPackage and Exit-PSScript use under the hood to report download progress, send the exit code, and request a reboot. See How PowerPack installations work for the full flow.

Configurable per package

Set in the #### VARIABLES #### block at the top of the script — see the script templates for the exact defaults used in the install vs. uninstall template.

Variable	Data type	Purpose	Default (install / uninstall template)
$global:DownloadPackage	bool	Download the kit folder from the server before Install (or Uninstall) runs	$true / $false
$global:MinimumDiskspaceMB	int	Minimum free disk space on the system drive, in MB, checked in PreInstall (or PreUninstall)	1500 / 0

Set by Initialize-Variables

Note

These become available after Initialize-Variables runs in #### MAIN ####, before PreInstall — see Initialize-Variables.

Variable	Data type	Example
$global:gsProgramFiles	string	C:\Program Files
$global:gsProgramFilesx86	string	C:\Program Files (x86)
$global:gsWindowsDir	string	C:\Windows
$global:gsWorkstationPath	string	C:\Program Files\CapaInstaller\Client\
$global:gsSystemRoot	string	C:\Windows
$global:gsSystemDir	string	C:\Windows\System32
$global:gsSystemDirx86	string	C:\Windows\Syswow64
$global:gsLogDir	string	C:\Program Files\CapaInstaller\Client\Logs
$global:gsTempDir	string	C:\Program Files\CapaInstaller\Client\Logs\Temp
$global:gsOsSystem	string	Microsoft Windows 11 Pro N
$global:gsOsVersion	string	10.0.22631.0
$global:gsLog	string	C:\Program Files\CapaInstaller\Client\Logs\WS Ready To Use\Install.log
$global:AppLogFolder	string	C:\Program Files\CapaInstaller\Client\Logs\WS Ready To Use
$global:gsLogName	string	Install.log
$global:gsTask	string	INSTALL
$global:gbDisablelog	bool	False
$global:gbSuficientDiskSpace	bool	True
$global:gsJobName	string	WS Ready To Use
$global:gsLibrary	string	C:\Program Files\CapaInstaller\Client\Lib
$global:gbx64	bool	True
$global:gsCommonPrograms	string	C:\ProgramData\Microsoft\Windows\Start Menu\Programs
$global:gsSysDrive	string	C:
$global:gsCommonDesktop	string	C:\Users\Public\Desktop
$global:gsCommonStartMenu	string	C:\ProgramData\Microsoft\Windows\Start Menu
$global:gsCommonStartup	string	C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup
$global:gsCommonFilesDir	string	C:\Program Files\Common Files
$global:gsCommonFilesDirx86	string	C:\Program Files (x86)\Common Files
$global:gsCommonAppData	string	C:\ProgramData
$global:gsProgramData	string	C:\ProgramData
$global:gsProductid	string	WS Ready To Use
$global:gsAllusers	string	C:\ProgramData
$global:gsWorkstationName	string	TEST01
$global:gsOsBuild	string	22631
$global:gsEditionId	string	ProfessionalN
$global:gsDisplayVersion	string	23H2
$global:gsWindowsType	string	WinNT
$global:gsOsArchitechture	string	X64
$global:gsWindowsVersion	string	6.3
$global:gsUnitName	string	593F4D56-97B0-0CE5-A288-46DD2907041E
$global:gsComputerManufacturer	string	VMware, Inc.
$global:gsComputerModel	string	VMware20,1
$global:gsUUID	string	593F4D56-97B0-0CE5-A288-46DD2907041E

Note

A few aliases pointing at the same value also exist: $global:gsWindir (same as gsWindowsDir), $global:gsCommonFiles and $global:gsCommonFilesx86 (same as gsCommonFilesDir / gsCommonFilesDirx86).