live customer support chat,

You can try with Signal-R concept of the Microsoft refer the following link

http://www.asp.net/signalr/overview/getting-started/tutorial-getting-started-with-signalr[^]



http://visualstudiomagazine.com/articles/2013/01/28/chat-app-with-signal-r-2.aspx[^]

Please look at the below articles and links.

1. A. R. Live Support: XML Based Customer Support Chat Solution[^].
2. WCF / WPF Chat Application[^].
3. WPF.WCF Chat Application Simplified via P2P[^].
4. Simple Chat Application in ASP.NET[^]
5. Simple Live Chat - ASP.Net [C#][^].
6. Free Live Chat Software and Visitor Tracking Solution![^].
7. ASP.NET Chat Component[^].

I don't know but the first sentence:

Quote:

I need to build a customer support chat,
but don't need to buy, I need to develop own, using asp, or asp.net

is somehow in conflict with the next one:

Quote:

Please send me a code for this, Or please specify me a link, I need client and server chat

Don't you think?

In conclusion:
If you want someone to make the work for you... www.rentacoder.com[^] or www.oDesk.com[^]

If you want to develope it on your own, then start for the beggining. Feel free to come back when you get stuck with something and do a concrete question, then you will see, that people here is glad to help. But I strongly recommend you to read What have you tried?[^] first, so you next question really gets the answer it deserves

Try to be friendly with SignalR technology ,rest you should do it by own.