IP Messenger是一款局域网内部聊天、文件传输工具，具有很多优点，如数据通讯不需要建立服务器、直接在两台电脑间通信和数据传输，支持文件及文件目录的传输，安全快捷以及小巧方便等优异特点，因此很多公司都采用它作为部门、公司内部的IM即时通信工具。
IP Messenger在程序结构方面采用了Windows SDK处理结构，通信方面采用了TCP/UDP通信方式，在文件传输处理方面采用文件映射技术，等等。通过分析IP Messenger的运行、工作原理，可以提高并加深对Windows处理流程的理解，提高SOCKET编程技术等，因此特对其源码进行分析，以抛砖引玉，共同提高大家的编程技术。
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001378s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.091279s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001144s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001899s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001150s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003657s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000979s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003183s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015414s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001371s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 280990 [ RunTime:0.001450s ]
