Hello there. I have read a message that you posted in this forum that u have written a sample application to catch the WM_DEVICECHANGE message and it works well. I was wondering if you could e-mail to me a sample of the above application as I am interested in implementing that same function. Also, would you happen to know of any working samples/examples that have implemented the OnDeviceChange() function? If you do, it would be great if you could lead me to/send me those sources. I hope u can help. RaYDyO