$disconnected_users = qwinsta  | select-string "Disc" | select-string -notmatch "services"

if ($disconnected_users )
{
  $disconnected_users|ForEach-Object{
    write-output "kickoff of :"
    write-output ($_.tostring() -split ' +')[1]
    logoff ($_.tostring() -split ' +')[2] 
  }
}