Résolu Zipper avec l'assembly net en filtrant sur des types de fichiers

Compress-Archive "D:\CF\Undelivr\*.cfmail" -DestinationPath "D:\Mail\Undelivr\$name" -CompressionLevel Optimal

$source="D:\CF\Undelivr\*.cfmail"
$dest="D:\Mail\Undelivr\$name"
# Compression level. Optimal means smallest size, even if it takes a little longer to compress
$compressionLevel = [System.IO.Compression.CompressionLevel]::Optimal
# Whether or not to include root directory (if zipping a directory) in the archive
$includeBaseDirectory = $True
Add-Type -AssemblyName System.IO.Compression.FileSystem
[System.IO.Compression.ZipFile]::CreateFromDirectory("$source","$dest",$compressionLevel,$includeBaseDirectory)

$name=get-date -Format "yyyyMMdd_HHmmss"
$source="D:\CF\Undelivr\*.cfmail"
#Créer une archive vide à un emplacement
$zipFilePath = "D:\CF\Undelivr\"+$name
$zip = [System.IO.Compression.ZipFile]::Open($zipFilePath, 'create')
#close the locks on that file
$zip.Dispose()
#Activer le mode update
$zip = [System.IO.Compression.ZipFile]::Open($zipFilePath, 'update')
#permet d'ajouter les fichiers en filtrant sur l'extension souhaité
Get-ChildItem $source| ForEach-Object {[System.IO.Compression.ZipFileExtensions]::CreateEntryFromFile($zip, $_.FullName, (Split-Path $_.FullName -Leaf), $compressionLevel)}
$zip.Dispose()