Portable Trillian is portable version of Trillian which is a fully featured, stand-alone, skinnable chat client that supports AIM, ICQ, MSN, Yahoo Messenger and IRC. Trillian provides capabilities not possible with original network clients, while supporting standard features such as audio chat, group chats, file transfers, buddy icons, chat rooms, multiple simultaneous connections to the same network, server-side contact importing, typing notification, direct connection (AIM), proxy support, encrypted messaging (AIM/ICQ), SMS support, and privacy settings.