Deploying PortableApps via PowerShell

I notice that PortableApps executable containers can simply be unzipped, but also possibly there are switches to do it according to your standards, so I would like know the best way to do this in PowerShell. i.e. I want to *silently* deploy some app:

$7z = "D:\MyDownloads\7zipPortable.exe"
if (Test-Path $7z) { & $7z [whatever-switches-required] [install-directory-of-my-choice] }

Would appreciate any advice on the correct / most efficient way to do this for multiple packages?