Get-GphGpExtensions.ps1
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#requires -Version 1.0 function Get-GphGpExtensions { <# .SYNOPSIS Gets all installed Group Policy Extensions from the Registry .DESCRIPTION All Group Policy Extensions must be registered in the Registry. Get-GPExtension retrieves them from HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\GPExtensions and shows them in their processing-order. It can also show the Configuration-Settings of the Extensions by using the Parameter -Showregkeys. .EXAMPLE Get-GPExtensions -ShowRegKeys Gets all Extension and their Settings #> [CmdletBinding()] param( # Get all Registry-Settings for the Extension [switch]$ShowRegKeys ) # Unnamed Extension have no name set in the registry. $UnnamedExtensions = @{ '{35378EAC-683F-11D2-A89A-00C04FBBCFA2}' = 'Registry Settings' '{4D2F9B6F-1E52-4711-A382-6A8B1A003DE6}' = 'TS Workspace' '{F312195E-3D9D-447A-A3F5-08DFFA24735E}' = 'Device Guard' '{FC491EF1-C4AA-4CE1-B329-414B101DB823}' = 'Device Guard' } $gpExtensionsPath = 'Registry::Hkey_local_machine\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\GPExtensions' $SpalteDefault = @{ Name='Extension Name' expression= { if ( $_.'(Default)' ) { $_.'(Default)'} Else { $UnnamedExtensions.($_.PSChildName) } } } $SpalteGUID = @{ Name='GUID' expression = { $_.PSChildName }} $SelectParam = @{ Property=$SpalteGUID,$SpalteDefault,'ProcessGroupPolicy','DllName' } $Extensions = 'Guid', 'Extension Name', 'DllName', 'ProcessGroupPolicy', 'ProcessGroupPolicyEx', 'GenerateGroupPolicy', 'EnableAsynchronousProcessing', 'ExtensionEventSource', 'MaxNoGPOListChangesInterval', 'NoBackgroundPolicy', 'NoGPOListChanges', 'NoMachinePolicy', 'NoSlowLink', 'NotifyLinkTransition', 'NoUserPolicy', 'PerUserLocalSettings', 'RequiresSuccessfulRegistry' If ( $ShowRegKeys ) { 1 | Select-Object -Property $Extensions } Get-ChildItem -Path $gpExtensionsPath | ForEach-Object { $Regkeys = $_ | Get-ItemProperty If ( $ShowRegKeys ) { $RegKeys | Select-Object -Property $SpalteGuid,$SpalteDefault,* } Else { if ( $regkeys ) { $RegKeys | Select-Object @SelectParam } Else {$_ | Select-Object @SelectParam } } } } |