Ведение таблицы подписей Outlook

$htm = "$env:APPDATA\Microsoft\Signatures\*.htm"
$txt = "$env:APPDATA\Microsoft\Signatures\*.txt"
$rtf = "$env:APPDATA\Microsoft\Signatures\*.rtf"
$dest = "c:\\LOG"
$CurrentData = Get-Date -Format "dd/MM/yyyy"
$source = Get-ChildItem -Recurse -Path $htm,$txt,$rtf
$tab = $source | Select-Object Name,$Lastwritetime 
$Lastwritetime = @{Name="LastWriteTime"; Expression={$_.LastWriteTime.ToString("dd/MM/yyyy")}}
$tab | add-member -membertype NoteProperty -name CurrentData -value $CurrentData
$tab | add-member -membertype NoteProperty -name USERname -value $env:UserName 
$tab | add-member -membertype NoteProperty -name PCname -value $env:ComputerName
$tab | add-member -membertype NoteProperty -name OS -value (Get-WmiObject win32_operatingsystem).caption
$tab | add-member -membertype NoteProperty -name Count -value 1
$tab | add-member -membertype NoteProperty -name Auto -value "$auto"
$tab | add-member -membertype NoteProperty -name OLD -value "$old"
$tab | add-member -membertype NoteProperty -name Save -value "$saves"
if ($new -like '_*.*') {$saves = '1'} else {$saves = "0"}
if ($CurrentData -like $Lastwritetime) {$auto = '1'} else {$old = "1"}
$tab | Export-Csv $dest\Signature_log.csv -Encoding UTF8 -Append -NoType -UseCulture