Hi

I create a virtual bluetooth serial port entry in the registry. After that I try to open this port using: System.IO.Ports.SerialPort, but it fails.

Only with a soft reset I can open port.

How I can register the port without soft reset ?

 can you tell me how do you create a virtual serial port.. i am trying to do the same thing but with no luck..

See the "Bluetooth Serial Ports" section in the user's guide (e.g. at http://www.alanjmcf.me.uk/comms/bluetooth/32feet.NET%20--%20User%20Guide.html)

In short a reboot is required as far as we know in that case.  There is an API in WM but it "is rather unreliable, and it seems not to work at all on various device types".

Can you tell me which is the API that you mention

thanks in advance

 i am using windows desktop XP SP3 is this possible with my platform?

RegisterDevice with PORTEMUPortParams, see http://blogs.msdn.com/cenet/archive/2005/08/18/453150.aspx and http://msdn.microsoft.com/en-us/library/ms881004.aspx