code:

---

$computer = "@WKSTA"
$uName = "" 
$upass = ""
$namespace = "root\cimv2"
$command = "c:\winnt\system32\cmd.exe"
$sysloc = CreateObject("WbemScripting.SWbemLocator")
$sysset = $sysloc.ConnectServer($computer, $namespace, $uname, $upass)
$sysset.Security_.ImpersonationLevel = 3

$objProcStart = $sysset.Get("Win32_ProcessStartup")
$ProcStartInst = $objProcStart.SpawnInstance_
$ProcStartInst.Title = "Hi, How are you?"
$ProcStartInst.ShowWindow = 1 ; this part doesn't seem to work right.
$procStartInst.Put_

$objProc = $sysset.Get("Win32_Process")
$objProcInst = $ObjProc.Methods_("Create").InParameters.SpawnInstance_
$objProcInst.CommandLine = $command
$objProcInst.ProcessStartupInformation = $ProcStartInst
$objProcOut = $sysset.ExecMethod("Win32_Process","Create",$objProcInst)
$pid = $objProcOut.Processid
$owner = $sysset.Get("Win32_Process=$pid").ExecMethod_("GetOwner")

"Process " + $pid + " was created by " + $owner.domain + 
 "\" + $owner.user + "."

---