Gruss Betting Assistant allows 3rd party software to communicate with it using what is called a COM interface. It effectively becomes a server that allows other software to connect to it. Gruss Betting Assistant communicates with the Betfair/Betdaq Server through the Betfair/Betdaq API. TBM communicates with Gruss Betting Assistant through the COM server.
At no point does TBM communicate with Betfair/Betdaq. TBM simply tells Gruss Betting Assistant which selection to use, what odds to use, what stake to use and when to bet.