(PowerShell) Automatically Determine FTP Proxy Method

Tries each of the five possible ProxyMethod settings and returns the value (1-5) of the ProxyMethod that succeeded.

Download: Chilkat .NET Assemblies

[Reflection.Assembly]::LoadFile("C:\myAssemblies\ChilkatDotNet2.dll")

$ftp = New-Object Chilkat.Ftp2

#  Any string unlocks the component for the 1st 30-days.
$success = $ftp.UnlockComponent("Anything for 30-day trial")
if ($success -ne $true) {
    $($ftp.LastErrorText)
    exit
}

$ftp.Hostname = "www.example-code.com"
$ftp.Username = "example-code.com"
$ftp.Password = "****"

$ftp.ProxyHostname = "ftp.myproxyhost.com"
$ftp.ProxyPort = 21
#  Note: Your FTP Proxy server may or may not require authentication.
$ftp.ProxyUsername = "myProxyUsername"
$ftp.ProxyPassword = "myProxyPassword"

#  The ProxyMethod should be an integer value between 1 and 5.
#  If you know your FTP proxy server's authentication scheme,
#  you may set it directly.  To determine the ProxyMethod,
#  call DetermineProxyMethod.  A return value of -1 indicates a failure.
#  A return value of 0 indicates that nothing worked.
#  A return value of 1-5 indicates the ProxyMethod that was
#  successful, and this should be the value used for the ProxyMethod
#  property.

$pMethod = $ftp.DetermineProxyMethod()
$($pMethod)

$ftp.Disconnect()