DSCResources/ROSSCommon/Src/Get-InstalledProductEntry.ps1
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function Get-InstalledProductEntry { <# .NOTES https://github.com/PowerShell/xPSDesiredStateConfiguration/blob/dev/DSCResources/MSFT_xPackageResource/MSFT_xPackageResource.psm1 #> [CmdletBinding()] param ( [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $Name, [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $IdentifyingNumber, [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $InstalledCheckRegHive = 'LocalMachine', [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $InstalledCheckRegKey, [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $InstalledCheckRegValueName, [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $InstalledCheckRegValueData ) process { $uninstallKey = 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall'; $uninstallKeyWow64 = 'HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall'; if ($IdentifyingNumber) { $keyLocation = '{0}\{1}' -f $uninstallKey, $identifyingNumber; $item = Get-Item -Path $keyLocation -ErrorAction SilentlyContinue; if (-not $item) { $keyLocation = '{0}\{1}' -f $uninstallKeyWow64, $identifyingNumber; $item = Get-Item -Path $keyLocation -ErrorAction SilentlyContinue; } return $item; } foreach ($item in (Get-ChildItem -Path $uninstallKey, $uninstallKeyWow64 -ErrorAction Ignore)) { $installedProduct = Get-LocalizableRegistryKeyValue -RegistryKey $item -ValueName 'DisplayName'; if ($installedProduct) { $installedProduct = $installedProduct.Trim(); } if ($Name -eq $installedProduct) { return $item; } } if ($InstalledCheckRegKey -and ($InstalledCheckRegValueName -and $InstalledCheckRegValueData)) { $installValue = $null; $getRegistryValueIgnoreErrorParams = @{ RegistryHive = $InstalledCheckRegHive; Key = $InstalledCheckRegKey; Value = $InstalledCheckRegValueName; } #if 64bit OS, check 64bit registry view first if ([System.Environment]::Is64BitOperatingSystem) { $getRegistryValueIgnoreErrorParams['RegistryView'] = [Microsoft.Win32.RegistryView]::Registry64; $installValue = Get-RegistryValueIgnoreError @getRegistryValueIgnoreErrorParams; } if ($null -eq $installValue) { $getRegistryValueIgnoreErrorParams['RegistryView'] = [Microsoft.Win32.RegistryView]::Registry32; $installValue = Get-RegistryValueIgnoreError @getRegistryValueIgnoreErrorParams; } if ($installValue) { if ($InstalledCheckRegValueData -and ($installValue -eq $InstalledCheckRegValueData)) { return @{ Installed = $true; } } } } return $null; } #end process } #end function Get-InstalledProductEntry |