Private/AddLastWriteTimeToRegKeys.ps1
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# From: https://gallery.technet.microsoft.com/scriptcenter/Get-Last-Write-Time-and-06dcf3fb function AddLastWriteTimeToRegKeys { [CmdletBinding()] param () # NOTE: If you use this method, do not import the Add-RegKeyMember function and Get-ChildItem proxy function Add-Type @" using System; using System.Text; using System.Runtime.InteropServices; namespace CustomNameSpace { public class advapi32 { [DllImport("advapi32.dll", CharSet = CharSet.Auto)] public static extern Int32 RegQueryInfoKey( Microsoft.Win32.SafeHandles.SafeRegistryHandle hKey, StringBuilder lpClass, [In, Out] ref UInt32 lpcbClass, UInt32 lpReserved, out UInt32 lpcSubKeys, out UInt32 lpcbMaxSubKeyLen, out UInt32 lpcbMaxClassLen, out UInt32 lpcValues, out UInt32 lpcbMaxValueNameLen, out UInt32 lpcbMaxValueLen, out UInt32 lpcbSecurityDescriptor, out Int64 lpftLastWriteTime ); } } "@ Update-TypeData -TypeName Microsoft.Win32.RegistryKey -MemberType ScriptProperty -MemberName LastWriteTime -Value { $LastWriteTime = $null $Return = [CustomNameSpace.advapi32]::RegQueryInfoKey( $this.Handle, $null, # ClassName [ref] 0, # ClassNameLength $null, # Reserved [ref] $null, # SubKeyCount [ref] $null, # MaxSubKeyNameLength [ref] $null, # MaxClassLength [ref] $null, # ValueCount [ref] $null, # MaxValueNameLength [ref] $null, # MaxValueValueLength [ref] $null, # SecurityDescriptorSize [ref] $LastWriteTime ) if ($Return -ne 0) { "[ERROR]" } else { # Return datetime object: [datetime]::FromFileTime($LastWriteTime) } } Update-TypeData -TypeName Microsoft.Win32.RegistryKey -MemberType ScriptProperty -MemberName ClassName -Value { $ClassLength = 255 # Buffer size (class name is rarely used, and when it is, I've never seen # it more than 8 characters. Buffer can be increased here, though. $ClassName = New-Object System.Text.StringBuilder $ClassLength # Will hold the class name $Return = [CustomNameSpace.advapi32]::RegQueryInfoKey( $this.Handle, $ClassName, [ref] $ClassLength, $null, # Reserved [ref] $null, # SubKeyCount [ref] $null, # MaxSubKeyNameLength [ref] $null, # MaxClassLength [ref] $null, # ValueCount [ref] $null, # MaxValueNameLength [ref] $null, # MaxValueValueLength [ref] $null, # SecurityDescriptorSize [ref] $null # LastWriteTime ) if ($Return -ne 0) { "[ERROR]" } else { # Return class name $ClassName.ToString() } } } |