Public/Expand-WindowsUpdatePackage.ps1
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function Expand-WindowsUpdatePackage { [CmdletBinding()] param ( # The path to the .msu or .cab file to be expanded [Parameter(Mandatory = $true, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)] [ValidateNotNullOrEmpty()] [string]$filePath, # The destination directory where the files will be extracted [Parameter(Mandatory = $true)] [ValidateNotNullOrEmpty()] [string]$destinationPath ) begin { # Display a note to the user Write-Host "===========================" Write-Host Write-Host "Note: Do not close any Windows opened by this script until it is completed." Write-Host Write-Host "===========================" Write-Host # Initialize a hashtable to track processed files $processedFiles = @{} } process { # Remove quotes if present $filePath = $filePath -replace '"', '' $destinationPath = $destinationPath -replace '"', '' # Trim trailing backslash if present $destinationPath = $destinationPath.TrimEnd('\') # Validate the file path if (-not (Test-Path $filePath -PathType Leaf)) { Write-Host "The specified file does not exist: $filePath" Write-Host return } # Validate or create the destination directory if (-not (Test-Path $destinationPath -PathType Container)) { Write-Host "Creating destination directory: $destinationPath" Write-Host New-Item -Path $destinationPath -ItemType Directory | Out-Null } # Define the function to expand a file function Expand-File ($file, $destination) { Write-Host "Expanding $file to $destination" Write-Host Start-Process -FilePath "cmd.exe" -ArgumentList "/c expand.exe `"$file`" -f:* `"$destination`" > nul 2>&1" -Wait -WindowStyle Hidden $processedFiles[$file] = $true Write-Host "Expansion completed for $file" Write-Host } # Define the function to rename a file function Rename-File ($file) { if (Test-Path -Path $file) { $newName = [System.IO.Path]::GetFileNameWithoutExtension($file) + "_" + [System.Guid]::NewGuid().ToString("N") + [System.IO.Path]::GetExtension($file) $newPath = Join-Path -Path ([System.IO.Path]::GetDirectoryName($file)) -ChildPath $newName Write-Host "Renaming $file to $newPath" Rename-Item -Path $file -NewName $newPath Write-Host "Renamed $file to $newPath" Write-Host return $newPath } Write-Host "File $file does not exist for renaming" Write-Host return $null } # Define the function to recursively expand CAB files function Expand-CabFiles ($directory) { while ($true) { $cabFiles = Get-ChildItem -Path $directory -Filter "*.cab" -File | Where-Object { -not $processedFiles[$_.FullName] -and $_.Name -ne "wsusscan.cab" } if ($cabFiles.Count -eq 0) { Write-Host "No more CAB files found in $directory" Write-Host break } foreach ($cabFile in $cabFiles) { Write-Host "Processing CAB file $($cabFile.FullName)" Write-Host $cabFilePath = Rename-File -file $cabFile.FullName if ($null -ne $cabFilePath) { Expand-File -file $cabFilePath -destination $directory Expand-CabFiles -directory $directory } } } } try { # Initial extraction based on file type if ($filePath.EndsWith(".msu")) { Write-Host "Extracting .msu file to: $destinationPath" Write-Host Expand-File -file $filePath -destination $destinationPath } elseif ($filePath.EndsWith(".cab")) { Write-Host "Extracting .cab file to: $destinationPath" Write-Host Expand-File -file $filePath -destination $destinationPath } else { Write-Host "The specified file is not a .msu or .cab file: $filePath" Write-Host return } # Process all .cab files recursively Write-Host "Starting to process CAB files in $destinationPath" Write-Host Expand-CabFiles -directory $destinationPath } catch { Write-Host "An error occurred while extracting the file. Error: $_" return } Write-Host "Extraction completed. Files are located in $destinationPath" return $destinationPath } end { Write-Host } } |