Hi Eric, You are correct, replace: if (([discoverer discoverWithDeviceList:nil serviceList:serviceArray serviceRecord:&serviceRecord] == kIOReturnSuccess) && with: if (([discoverer discoverWithDeviceAttributes:nil serviceList:serviceArray serviceRecord:&serviceRecord] == kIOReturnSuccess) && and everything should be o.k. ... Marco On Thursday, November 14, 2002, at 02:25 AM, Eric Kolotyluk wrote: I make a copy of the RFCOMMClientSample and commented out the line in ChatBluetoothInteface.h #DEFINE USE_C_API and built and ran the project but got warnings at compile time and errors at run time 2002-11-14 02:14:55.741 RFCOMMClientSample[1955] *** -[IOBluetoothConcreteServiceBrowserController discoverWithDeviceList:serviceList:serviceRecord:]: selector not recognized _______________________________________________ bluetooth-dev mailing list | bluetooth-dev@lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/bluetooth-dev Do not post admin requests to the list. They will be ignored.