http://www.winsocketdotnetworkprogramming.com/winsock2programming/winsock2advancedotherprotocol4j.html : 블루투스 디바이스 쿼리.
https://code.msdn.microsoft.com/windowsdesktop/Bluetooth-Connection-e3263296 - MSDN 블루투스 - WIN8 이상에서만.... ><?? 확인 안해봄.
https://msdn.microsoft.com/ko-kr/library/windows/desktop/aa362928(v=vs.85).aspx - Bluetooth Programming with Windows Sockets
https://www.codeproject.com/Articles/252882/Bluetooth-Server-Programming-on-Windows - 코드 프로젝트.
기타 예제