Flash IRC client is a feature rich open source web-chat client based on IRCwx (protocol especially tailored for web chat) protocol. It is built in flash - 95% of all browsers have flash installed, no activex to download and no hassle in installation, completely cross platform (works on Windows, MAC, and Linux), and secure.
Its main features include multi-language (Unicode) support, formatting, user preference settings, whispers (private messaging) in separate window, ignore/unignore, tagging, status icons, profile icons, and sound with certain events.
It is a convenient and affordable solution for adding state of the art chat rooms to any website.
You can checkout the demo at: http://www.net-bits.net/chatdemo/
*Major Change*:
I've removed emoticons in this because flash textbox is not suitable for dynamic images.
In version 2, I'm replacing flash textbox; in addition, architectural and technical changes in v2 will make it more efficient and suitable for dynamic image rendering and emoticons.
Best regards,