# Load WinSCP .NET assembly
Add-Type -Path "C:\Program Files (x86)\WinSCP\WinSCPnet.dll"

# Setup session options
$sessionOptions = New-Object WinSCP.SessionOptions -Property @{
    Protocol = [WinSCP.Protocol]::Ftp
    HostName = "hn"
    PortNumber = 21
    UserName = "us"
    Password = "pa"
}

$session = New-Object WinSCP.Session

try
{
        # Connect
        $session.Open($sessionOptions)

        # Download files
        $transferOptions = New-Object WinSCP.TransferOptions
        $transferOptions.TransferMode = [WinSCP.TransferMode]::Binary

        $transferResult = IF ($session.GetFiles -eq "/file2download" -or "/anotherfiletodownload.mp3"){, "path\to\put\it", $False, $transferOptions};

        # Throw on any error
        $transferResult.Check()


        # Print results
        foreach ($transfer in $transferResult.Transfers)
        {
            Write-Host ("Download of {0} succeeded" -f $transfer.FileName)
        }
    }
    finally
    {
        # Disconnect, clean up
        $session.Dispose()
    }