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 for the software were taken from AOL/ICQ.
QQ source Codes:
#ifdef __QQ_SUPPORT__
#include "IM_QQ_prot.h"
#endif //__QQ_SUPPORT__
Tencent QQ is a multilingual web page, offering languages such as: English, French, Japanese, Spanish, German & Korean. For users who do not speak Chinese, translations are also available in 50 different languages.