Extract a single file from a zip file

ExtractFileFromZip.ps1

param(
    [string] $archive,
    [string] $savePath,
    [string] $filename = [System.IO.Path]::GetFileName($savePath)
)
[Reflection.Assembly]::LoadWithPartialName("System.IO.Compression.FileSystem") | Out-Null
$outStream = New-Object System.IO.FileStream ("$savePath"), 'Create'
$inStream = ([System.IO.Compression.ZipFile]::OpenRead($archive).Entries | Where { $_.Name -eq $filename }).Open()
$inStream.CopyTo($outStream)
$inStream.Close()
$outStream.Close()