Ok..its done...very easy it was..I am posting it so that in future if someone looks for it..can find it easily...
Code:
#include "ServiceControl.au3"
$servicename = "ANY NAME U WANT"
_CreateService("", $servicename, "My AutoIt Script", "C:\Path_to_\srvany.exe", "LocalSystem", "", 0x110)
RegWrite("HKLM\SYSTEM\CurrentControlSet\Services\" & $servicename & "\Parameters", "Application", "REG_SZ", @ScriptFullPath)
download SRVANY.EXE from
:-
Download ServiceControl.au3 from
Do that and both autoit exe and IE will go under process
just give it a good system name and people will not touch it :P