Scripts/Get-InstalledPrograms.ps1
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[CmdletBinding()] Param() $Results = @() $TypeName = 'PSWinGlue.InstalledProgram' Update-TypeData -TypeName $TypeName -DefaultDisplayPropertySet @('Name', 'Publisher', 'Version', 'Scope') -Force # Programs installed system-wide in native bitness $ComputerNativeRegPath = 'HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall' # Programs installed only under the current-user (any bitness) $UserRegPath = 'HKCU:\Software\Microsoft\Windows\CurrentVersion\Uninstall' # Programs installed system-wide under the 32-bit emulation layer (64-bit Windows only) $ComputerWow64RegPath = 'HKLM:\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall' # Retrieve all installed programs from available keys $UninstallKeys = Get-ChildItem -Path $ComputerNativeRegPath if (Test-Path -Path $ComputerWow64RegPath -PathType Container) { $UninstallKeys += Get-ChildItem -Path $ComputerWow64RegPath } $UninstallKeys += Get-ChildItem -Path $UserRegPath # Filter out all the uninteresting installation results foreach ($UninstallKey in $UninstallKeys) { $Program = Get-ItemProperty -Path $UninstallKey.PSPath # Skip any program which doesn't define a display name if (!$Program.PSObject.Properties['DisplayName']) { continue } # Ensure the program either: # - Has an uninstall command # - Is marked as non-removable if (!($Program.PSObject.Properties['UninstallString'] -or ($Program.PSObject.Properties['NoRemove'] -and $Program.NoRemove -eq 1))) { continue } # Skip any program which defines a parent program if ($Program.PSObject.Properties['ParentKeyName'] -or $Program.PSObject.Properties['ParentDisplayName']) { continue } # Skip any program marked as a system component if ($Program.PSObject.Properties['SystemComponent'] -and $Program.SystemComponent -eq 1) { continue } # Skip any program which defines a release type if ($Program.PSObject.Properties['ReleaseType']) { continue } $Result = [PSCustomObject]@{ PSTypeName = $TypeName PSPath = $Program.PSPath Name = $Program.DisplayName Publisher = $null InstallDate = $null EstimatedSize = $null Version = $null Location = $null Uninstall = $null Scope = $null } if ($Program.PSObject.Properties['Publisher']) { $Result.Publisher = $Program.Publisher } if ($Program.PSObject.Properties['InstallDate']) { $Result.InstallDate = $Program.InstallDate } if ($Program.PSObject.Properties['EstimatedSize']) { $Result.EstimatedSize = $Program.EstimatedSize } if ($Program.PSObject.Properties['DisplayVersion']) { $Result.Version = $Program.DisplayVersion } if ($Program.PSObject.Properties['InstallLocation']) { $Result.Location = $Program.InstallLocation } if ($Program.PSObject.Properties['UninstallString']) { $Result.Uninstall = $Program.UninstallString } if ($Program.PSPath.startswith('Microsoft.PowerShell.Core\Registry::HKEY_LOCAL_MACHINE')) { $Result.Scope = 'System' } else { $Result.Scope = 'User' } $Results += $Result } return ($Results | Sort-Object -Property Name) |