Tencent QQ, also known as QQ, is a popular instant messaging software in mainland China. It was created by Tencent Inc. in 1999.
source codes were taken in 1999. from AOL/ICQ. AOL was Founded by Steve Case. is an American entrepreneur, investor, and businessman best known as the former chief executive officer and chairman of America Online (AOL). Case joined AOL's predecessor company, Quantum Computer Services, as a marketing vice-president and became CEO of the company (renamed AOL) in 1991.
QQ source Code:
much of it was using earlier codes from ICQ at the Time.
#ifdef __QQ_SUPPORT__
#include "IM_QQ_prot.h"
#endif //__QQ_SUPPORT__