With a myriad of chat software to choose from, users may definitely have more than one running on their computers. But do you know what are the most widely used chat software nowadays? As of today, here are the most downloaded chat software from Download.com.

ICQ (333,049 downloads) – send messages without opening windows, tabbed conversations, message, file and call history.

mIRC (219,769 downloads) – file transfers, multi-server connections, customizable sounds, and SSL encryption.

Camfrog Video Chat (214,549 downloads) – video-streaming chat rooms and multi-user videoconferencing.

Windows Live Messenger (58, 614 downloads) – free PC-to-PC calls and file sharing.

Trillian (50,862 downloads) – supports AIM, ICQ, IRC, MSN and Yahoo.