Oh, I am still working with VC++ 6.0 (mfc42) and cannot help you. And I have a problem, too. Could you do me a favor? When I use winsock (CSockect e.g.) to recieve the message of websites by sending "Get ...", majority are no problem but others can't work. I opened these ones in IE, They displayed a Security Alert messagebox with "Information you exchange with this site cannot be viewed or changed by others. However, there is a problem with the site's security certificate." Why I recieve nothing under this condition?