I've got an application using TAPI to communicate via COM. But when I start it, it comes to an error that TAPI is disabled and Modem functions can not be used. When I want to start the telephony panel in controls, it displays the message that the telephony service maybe could not start. But when I navigate to Services, I see telephony running and restarting it doesn't help. I don't get any error message when I restart it.