Exampe - Invoke-Multithread

gistfile1.ps1

#http://www.bryanvine.com/2015/06/powershell-script-invoke-multithread.html
#ScriptBlock: function declaration with function name on the last line without the -ComputerName parameter
$SB = {

    Function Check-WindowsServer{
        param(
            [string[]]$ComputerName
        )

        foreach ($server in $ComputerName){
            if(Test-Path "\\$server\c$\windows"){
                Write-Output "Is a Windows Server"
            }
            else{
                Write-Output "Is NOT a Windows Server"
            }
        }
    }


Check-WindowsServer}

Invoke-Multithread -ComputerName (Get-Content .\myserverlist.txt) -ScriptBlock $SB