中国数字认证网

用表格申请证书：

http://www.ca365.com/forward.do?pageurl=/ca/yhsc/4.jsp

 

制作cab

http://kiki1120.iteye.com/blog/512474

 

DNS获取IP地址列表前面有冒号：

http://stackoverflow.com/questions/1194388/dns-gethostentry-returns-wrong-ip-addresses-on-windows-mobile

 

断点续传：

http://www.cnblogs.com/takamachi660/archive/2009/08/06/1540022.html