Default Values for Commands and Optionsįor each operation in this chapter, the command or option that represents that operation has a default value. $ZipArchive = New-Object IO.Compression.This chapter contains detailed information on the features and options available when you add files to an archive. $Stream = New-Object IO.FileStream($ZipFileName, ::Open) Or you can display the contents of the zip archive as an Out-GridView table with additional info (size of compressed/uncompressed files, last write time, etc.): You can list the contents of the ZIP archive: The $zip.Dispose() command is used to close the zip file. $zip = ::Open($zipFileName, 'update')::CreateEntryFromFile($zip, $addfile, (Split-Path $addfile -Leaf), $compressionLevel) In order to update the ZIP archive and set the compression ratio, use the following PowerShell code: ::CreateFromDirectory($SourceFolder, $ZipFileName) To archive a folder, use a PS script like this: In earlier Windows version (prior to Windows 10 or Windows Server 2016 with PowerShell version < 5.0 (if you cannot upgrade the PowerShell version), you can use a separate ZipFile class (from NET Framework 4.5) to create zip archives.įirst, load the class into your PowerShell session:Īdd-Type -AssemblyName "System.IO.Compression.FileSystem" Working with Compressed Files with the PowerShell ZipFile Class You can install the 7Zip4Powershell module and extract a password protected zip file as follows:Įxpand-7Zip -ArchiveFileName C:\Archive\Logs.zip -Password -TargetPath C:\Share\Logs For example, 7zip or 7Zip4Powershell module. In more complex cases, you need to use third-party tools to perform archiving in your PowerShell scripts. The syntax for the cmdlet is similar:Įxpand-Archive String String įor example, to unpack the ZIP archive we created earlier into the specified folder and overwrite the files:Įxpand-Archive -Path C:\archive\logs-all.zip -DestinationPath c:\logs -Force You can use the Expand-Archive cmdlet to unzip ZIP files.
How to Extract a ZIP File with Expand-Archive?
+ CategoryInfo : NotSpecified: (:), MethodInvocationException $destStream.Write($buffer, 0, $numberOfBytesRead) When trying to compress a larger file, an error will appear:Įxception calling "Write" with "3" argument(s): "Stream was too long."Īt C:\Windows\system32\WindowsPowerShell\v1.0\Modules\\1:805 Hint.Because the module uses the System.IO.Compression.ZipArchive class, you cannot compress a file larger than 2 GB (because there’s a limitation of the underlying API).
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