$username = 'WIN-SERVER-2016customuser'
$password = "custompassword"
$secstr = New-Object -TypeName System.Security.SecureString
$password.ToCharArray() | ForEach-Object {$secstr.AppendChar($_)}
$cred = new-object -typename System.Management.Automation.PSCredential -argumentlist $username, $secstr

$Script_block = {cmd /c  node index.js}

Invoke-Command -ComputerName  WIN-SERVER-2016 -Credential $cred -ScriptBlock $Script_block