Zhi Dong Zhang

Tencent Technology (Shenzhen) Co., Ltd. designs and develops computer software and provides Internet information services in China. It offers instant messaging services; QQ, an Internet-based instant messaging tool to support online message communications and instant voice, video, and file transmission; TM, an instant messaging communication software application; Real Time eXchange, an instant messaging platform launched for enterprises; Traveler, a multi-page web page browser; QQDoctor, an anti-virus tool developed to address the problem of Trojan viruses that steal QQ passwords; QQMailbox, provides e-mail services to users; and QQDownload, software that simultaneously supports various download tasks. The company was founded in 2000 and is located in Shenzhen, China.