Question : How do i develop a chat application without using timer in c#?

I want to develop a windows chat application without using timer in c#.How do i do this???

Answer : How do i develop a chat application without using timer in c#?

TCP/IP Chat Application Using C#
http://www.codeproject.com/KB/IP/TCPIPChat.aspx

Simple Chat Application Using .Net Sockets
http://www.codeproject.com/KB/cs/ChatApplDotNetSockets.aspx

Basic Client/Server Chat Application in C#
 http://www.dreamincode.net/forums/showtopic33396.htm

C# Chat: Part 1 - Building the Chat Client
http://www.geekpedia.com/tutorial239_Csharp-Chat-Part-1---Building-the-Chat-Client.html