(PowerShell) Bind and Listen on a Randomly Selected Unused Port

Demonstrates how to bind and listen on a randomly selected unused port.

Note:The ListenPort property used in this example is available starting in Chilkat v9.5.0.59.

Chilkat .NET Downloads Chilkat .NET Assemblies Chilkat for Mono

Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

$listenSocket = New-Object Chilkat.Socket

# Pass a value of 0 for the port number to randomly select
# an unused port.
# (The 2nd argument allows for a backlog of 25 pending connection requests when accepting connections.)
$success = $listenSocket.BindAndListen(5555,25)
if ($success -ne $true) {
    $($listenSocket.LastErrorText)
    exit
}

# Find out what port was chosen.
# Note: The ListenPort propety was added in Chilkat v9.5.0.59
$listenPort = $listenSocket.ListenPort
$("Chosen listen port = " + $listenPort)