how to create browser based messaging system in c#

Question

In company there are many users.they logged in application to interact with each other.users wants to send one message to another user,if that user not working on  that window that message will seen by that user by pop-up window in his working window. so how to implement this in c#

Upendra Pratap Shahi · Answer

Hello Javed,   Read below article-   http://www.codeproject.com/Articles/524066/SignalR-Simple-Chat-Application-in-Csharp   http://www.c-sharpcorner.com/UploadFile/78d182/signalr-sample-chat-application-in-C-Sharp/     http://www.codeproject.com/Articles/27384/Build-a-Web-Chat-Application-using-ASP-Net-LIN     http://www.geekpedia.com/tutorial239_Csharp-Chat-Part-1---Building-the-Chat-Client.html