Hi, Last week I had a problem with initialization of modem through DirectPlay in my project. Somebody told me that the problem was that the Open function should be in the main thread or that I should pass the messages from the thread that receives the Windows'' messages to the thread with DP code. The first solution is not possible at this moment, so I need to pass the modem messages to that thread. So I thought about passing the messages from a thread to the other through a message queue, but I don''t know what messages I should send. Anybody know what messages are sent to Windows from the modem? Thanks in advance. egarcia@ubisoft.es