ASP.NET Chat Pro
Full featured totally customizable, highly optimized chat with no page refreshes. Private rooms and private messages (whisper). Moderated rooms with "speaker", "moderator", "operator" and "regular users" roles. Ignore function. Kick and Ban from room or site by name and/or IP address. ... Chat server is easy to set up on your own site or at a third party hosting provider and you don't have to be an advanced network engineer to do that. ... Commonly used practice of creating a thread per connection is NOT utilized here, which yields for superior scalability and performance.
http://www.zbitinc.com/trials/ZbitNetChat.msi - 3Mb - Download - Screenshot

Zbit J-Chat Pro
The J-Chat Pro is fast, reliable, scalable, fully customized and easy to install chat application without page flickering. Hosts multiple sites, private rooms, and moderated chats. There are constant developments, great services, nice design. The scalability and speed of the chat service is due... It has a Fully customizable User Interface, Ignore Functions, kicks and bans users by name or by IP address, and abusive words filter. ... It has message font attributes and color. ... Our cutting-edge chat program allows chat users to send all their important messages without delays.
http://www.zbitinc.com/trials/zbitz26_trial.zip - 1b - Download - Screenshot

123 Flash Chat Server Software
123 Flash Chat Server Software brings you fast, amazing real-time chat solution. *With the 100% Pure Java server, it's a cross-platform application with reliability and high load support. *With the 100% pure flash client, it provides stunning and skinable interface and much faster speed than... 123FlashChat can now support moderated chat, predefined messages, AD banner, low port and hight load. ... check out the full feature list:h ttp://www. ... Video chat is added to 123flashchat with bandwidth consumption control.
http://www.123flashchat.com/download/123flashchat.exe - 16Mb - Download - Screenshot

.NET Web Components
A package of three Web components: a Shopping Cart, a Chat, and a Forum specially created for web developers. The products are based on the cutting-edge Microsoft. NET technology and provide better performance than their ASP analogues. The components are installed in 7-8 easy steps, they are... Admin Statistics. ... Forum moderation possibilities: ranking discussions, rank determined access restrictions. ... Forum Unlimited number of threaded discussions. ... Possibility of tree-like and table-like visual representation.
http://www.softaura.com/components - 0b - Download - Screenshot