Public/Get-ProductCode.ps1
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function Get-ProductCode { <# .DESCRIPTION Search the registry for a product code .EXAMPLE $ProductCode = Get-ProductCode -Name "Google Chrome" -RegistryKey 64 .NOTES Created by: Jon Anderson Modified: 2023-07-10 #> [CmdletBinding()] param( [parameter(Mandatory = $true)][ValidateNotNullOrEmpty()] [String]$Name, [parameter(Mandatory = $true)][ValidateSet("64","32")] [String]$UninstallKey ) Write-LogEntry -Value "Search for a product code for application $($Name)" -Severity 1 switch ($UninstallKey) { '64' {$RegistryKey = "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall"} '32' {$RegistryKey = "HKLM:\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall"} } Write-LogEntry -Value "Searching in $RegistryKey" -Severity 1 $Keys = Get-ChildItem -Path $RegistryKey | Select-Object -ExpandProperty Name foreach($Key in $Keys) { $TempPath = $Key -replace "HKEY_LOCAL_MACHINE","HKLM:" $TempKey = Get-ItemProperty -Path $TempPath if(($TempKey).DisplayName -match $Name) { if($TempKey.PSChildName -Match ("^(\{){0,1}[0-9a-fA-F]{8}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{12}(\}){0,1}$")) { Write-LogEntry -Value "Product code found for application $($Name): $($TempKey.PSChildName)" -Severity 1 return $TempKey.PSChildName.ToString() } else { Write-LogEntry -Value "No product code found for application: $($Name). UninstallString is: $($TempKey.UninstallString)" -Severity 2 return $NULL } } } } |