Thanks vipersnh & Gertlex for reply.
@vipersnh i m using COM3 port for sending Data. the problem is i don't know where & how to write program.
I know C programming, but first time i m doing serial(UART) programming. so i don't know much abt this.
I want to send one Data file from my BT control to PC (via Bluetooth). For that i think i have to write 1 programm in Controller to send Data file.
otherthing is in Datasheet of Control written that "No special s/w needed". I don't need QT c++, then the problem is where i have to write programm & how can i install this programm into Controller?
@Gertlex thank u very much for clearing my thoughts , from now it's UART programming not Bluetooth programming. how can i deal with serial prots ? pls read above & help me further.