Give up shell, you have to start new process by API call, get stdin and stdout handle and you can send/read there commands directly. It can look difficult but it is piece of cake - all what you need is several api calls.
No one has posted to this discussion for at least three months. Please let old threads die and do not reply to them unless you feel you have something new and valuable to contribute that absolutely must be added to make the discussion complete. Otherwise, please start a new thread in this forum instead.