Hi Alan, Thanks for the replay,Reaily i failed to rectify the issue. i tried calling connect method 2nd time without calling oBluetoothWin32Authentication = new BluetoothWin32Authentication(Win32AuthCallbackHandler); but still same result. please provide the code to Resolve this issue. My current code...

Hi Alan, I read that thread completly i agree it may work with obex with BT 2.1 . my environment is SPP with BT 3.0 with Window7. your solution works fines if the device is not paired for first time by hangling oBluetoothWin32Authentication = new BluetoothWin32Authentication(Win32AuthCallbackHandler...

Hi Alan, I tried the code which you suggested .its woking fine for unpaired devices. for paired devices the application will not call the call back event (Win32AuthCallbackHandler ) raises the exception m_oBTConnector.Connect(m_oEndPoint); //here i will get a exception "A socket operation was attempted...

Hi Alan, Thanks for your replay,i tried that method for first time it will call call back event second time it will will not call the call back event. if my Bluetooth version of the Pc with windows 7/xp is 3.0 means i need to bypass the paring and i want connect direct from Pc to Remote device. Please...

Hi Alan, my laptop having msft 3.0 and windows 7 i am trying to connect the devices it is not connecting. i tryied with first pairing and connecting next still its not working . scenerio is that if the bt version is greater than 2.0 the passkey must me bypassed. but i doint know how to connect the remote...

Hi Alan, i am facing problem in connecting the device for 2nd time. initially i when the device is newly conncted it will connectes (Paring & Connect). for the 2nd time when i try to connect the same device it will through an error A connection attempt failed because the connected party did not properly...

Hello Viwer, My application is currently woking fine by using Obex(OPP) but i want to do same using SPP profile. so what are the nessary changes i need to do in coding in windows xp PC using c#. Code C# public List<BluetoothDeviceInfo> DiscoverAllDevices() { List<BluetoothDeviceInfo> _devices...