Connection points for Chat server using ATL/COM

[Raj Prathap]

Hi, I'm planning to implement a chat server + a chat client as a learning exercise for my ATL/COM/DCOM. As part of that first I would implement a chat server which is a local server and a chat client. Please suggest if the following is possible, if true how. Clients register their callbacks by using Advice() (Of course, I would do FindConnectionPoint(), before that ). My doubt is is there any way to send the notification from the server to all the clients? and also can the server select the client to which it has to send the notification. For Example: User1, User2 are currently logged in. If user1 sends a message to User2 by using SendMsg(from, to, msg) of IChatServer, can the server alert client of User2. Otherwise can server broadcast the event?? Thanks and regards, Raja Pratap