Update CSE

Examples/Example-35-FindCSE.ps1

@@ -0,0 +1,21 @@
+Import-Module "$PSScriptRoot\..\GPoZaurr.psd1" -Force
+
+# Extracts CSE from registry
+$AllRegistryExtensions = Find-CSExtension
+$AllRegistryExtensions | Format-Table
+
+# Uses Hashtable - similar to above but much faster
+$AllRegistryExtensionsFaster = foreach ($CSE in $AllRegistryExtensions) {
+    ConvertFrom-CSExtension -CSE $CSE.CSE
+}
+$AllRegistryExtensionsFaster | Format-Table
+
+# With this we can find out if we're missing anything in hashtable so we can update code if nessecary
+$MissingEntries = foreach ($CSE in $AllRegistryExtensions) {
+    $Output = ConvertFrom-CSExtension -CSE $CSE.CSE
+    if ($Output.CSE -eq $Output.Description) {
+        # THis means the value in hashtable is missing this entry and we should add it
+        $CSE
+    }
+}
+$MissingEntries | Format-Table

GPOZaurr.psd1

@@ -5,7 +5,7 @@
     CompatiblePSEditions = 'Desktop'
     Copyright            = '(c) 2011 - 2020 Przemyslaw Klys @ Evotec. All rights reserved.'
     Description          = 'Group Policy Eater is a PowerShell module that aims to gather information about Group Policies but also allows fixing issues that you may find in them.'
-    FunctionsToExport    = 'Add-GPOPermission', 'Add-GPOZaurrPermission', 'Backup-GPOZaurr', 'Clear-GPOZaurrSysvolDFSR', 'Get-GPOZaurr', 'Get-GPOZaurrAD', 'Get-GPOZaurrBackupInformation', 'Get-GPOZaurrDictionary', 'Get-GPOZaurrFiles', 'Get-GPOZaurrFilesPolicyDefinition', 'Get-GPOZaurrFolders', 'Get-GPOZaurrLegacyFiles', 'Get-GPOZaurrLink', 'Get-GPOZaurrLinkSummary', 'Get-GPOZaurrOwner', 'Get-GPOZaurrPassword', 'Get-GPOZaurrPermission', 'Get-GPOZaurrPermissionConsistency', 'Get-GPOZaurrSysvol', 'Get-GPOZaurrSysvolDFSR', 'Get-GPOZaurrWMI', 'Invoke-GPOZaurr', 'Invoke-GPOZaurrPermission', 'Invoke-GPOZaurrSupport', 'New-GPOZaurrWMI', 'Remove-GPOPermission', 'Remove-GPOZaurr', 'Remove-GPOZaurrFolders', 'Remove-GPOZaurrLegacyFiles', 'Remove-GPOZaurrOrphanedSysvolFolders', 'Remove-GPOZaurrPermission', 'Remove-GPOZaurrWMI', 'Repair-GPOZaurrPermissionConsistency', 'Restore-GPOZaurr', 'Save-GPOZaurrFiles', 'Set-GPOOwner', 'Set-GPOZaurrOwner'
+    FunctionsToExport    = 'Add-GPOPermission', 'Add-GPOZaurrPermission', 'Backup-GPOZaurr', 'Clear-GPOZaurrSysvolDFSR', 'ConvertFrom-CSExtension', 'Find-CSExtension', 'Get-GPOZaurr', 'Get-GPOZaurrAD', 'Get-GPOZaurrBackupInformation', 'Get-GPOZaurrDictionary', 'Get-GPOZaurrFiles', 'Get-GPOZaurrFilesPolicyDefinition', 'Get-GPOZaurrFolders', 'Get-GPOZaurrLegacyFiles', 'Get-GPOZaurrLink', 'Get-GPOZaurrLinkSummary', 'Get-GPOZaurrOwner', 'Get-GPOZaurrPassword', 'Get-GPOZaurrPermission', 'Get-GPOZaurrPermissionConsistency', 'Get-GPOZaurrSysvol', 'Get-GPOZaurrSysvolDFSR', 'Get-GPOZaurrWMI', 'Invoke-GPOZaurr', 'Invoke-GPOZaurrPermission', 'Invoke-GPOZaurrSupport', 'New-GPOZaurrWMI', 'Remove-GPOPermission', 'Remove-GPOZaurr', 'Remove-GPOZaurrFolders', 'Remove-GPOZaurrLegacyFiles', 'Remove-GPOZaurrOrphanedSysvolFolders', 'Remove-GPOZaurrPermission', 'Remove-GPOZaurrWMI', 'Repair-GPOZaurrPermissionConsistency', 'Restore-GPOZaurr', 'Save-GPOZaurrFiles', 'Set-GPOOwner', 'Set-GPOZaurrOwner'
     GUID                 = 'f7d4c9e4-0298-4f51-ad77-e8e3febebbde'
     ModuleVersion        = '0.0.52'
     PowerShellVersion    = '5.1'

Public/ConvertFrom-CSExtension.ps1

@@ -1,7 +1,8 @@
 function ConvertFrom-CSExtension {
     [cmdletBinding()]
     param(
-        [string] $CSE
+        [string[]] $CSE,
+        [switch] $Limited
     )
     $GUIDs = @{
         # https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-gpreg/f0dba6b8-704f-45d5-999f-1a0a694a6df9
@@ -70,9 +71,19 @@ function ConvertFrom-CSExtension {
         '{B1BE8D72-6EAC-11D2-A4EA-00C04F79F83A}' = 'EFS Recovery'
         '{A2E30F80-D7DE-11d2-BBDE-00C04F86AE3B}' = 'Internet Explorer Settings'
     }
-    if ($GUIDs[$CSE]) {
-        return $GUIDs[$CSE]
-    } else {
-        return $CSE
+    foreach ($C in $CSE) {
+        if (-not $Limited) {
+            if ($GUIDs[$C]) {
+                [PSCustomObject] @{ Name = $C; Description = $GUIDs[$C] }
+            } else {
+                [PSCustomObject] @{ Name = $C; Description = $C }
+            }
+        } else {
+            if ($GUIDs[$C]) {
+                $GUIDs[$C]
+            } else {
+                $CSE
+            }
+        }
     }
 }

Public/Find-CSExtension.ps1

@@ -1,16 +1,21 @@
 function Find-CSExtension {
     [cmdletBinding()]
     param(
-        [string] $CSE
+        [string[]] $CSE,
+        [string] $ComputerName
     )
-
     #List Group Policy Client Side Extensions, CSEs, from Windows 10
-    $Keys = Get-PSRegistry -RegistryPath "HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\GPExtensions" -ComputerName AD3
+    $Keys = Get-PSRegistry -RegistryPath "HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\GPExtensions" -ComputerName $ComputerName
     foreach ($Key in $Keys.PSSubKeys) {
-        $Value = (Get-PSRegistry -RegistryPath "HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\GPExtensions\$Key" -ComputerName AD3).DefaultKey
-
-        if (-not $GUIDs[$Key]) {
-            "$Key $Value"
+        $RegistryKey = Get-PSRegistry -RegistryPath "HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\GPExtensions\$Key" -ComputerName $ComputerName
+        if ($CSE) {
+            foreach ($C in CSE) {
+                if ($RegistryKey.DefaultKey -eq $Key) {
+                    [PSCustomObject] @{ Name = $Key; Description = $RegistryKey.DefaultKey }
+                }
+            }
+        } else {
+            [PSCustomObject] @{ CSE = $Key; Description = $RegistryKey.DefaultKey }
         }
     }
 }

README.md

@@ -41,6 +41,8 @@ That's it. Whenever there's a new version, you run the command, and you can enjo
 
 - 0.0.52 - Unreleased
   - Added `Invoke-GPOZaurrSupport` (WIP)
+  - Added `ConvertFrom-CSExtension`
+  - Added `Find-CSExtension`
 - 0.0.51 - 2.08.2020
   - Updates to `Invoke-GPOZaurr` - still work in progress
   - Added `Get-GPOZaurrSysvolDFSR`