title: PHP.exe on windows - Does not end immediately after running a script
body: <p>I have WAMP installed, I am in wamp\bin\php 5.2.11\ directory on my command prompt.
  Even Simple command like php.exe --help shows the output of the help but the php.exe command 
  won't return immediately to the command prompt.
  It takes about 30 seconds for the php.exe to end and my command prompt to show up again.
  php.exe shows in my list of proceses in the task manager. 
  Why is this? What do I need to do to ensure that php.exe finishes after the script completes?
  note that this is not a script execution timeout issue, because even hello world script 
  takes 30 seconds to finish.
  Thank you very much for any pointefrs</p>