Chat Application

I need a chat client and server application. Chat Server : I want to add users via password with 2 types. User informations : username,password,FullName 1. Type is Client (with group support) (For ex : i can create a blue client group and define a members under this group) 2. Type is Admin (with group support) (I can define a blue group admin, this admin can see or send message only this blue client group members. Or i can create a root admin this one is see everyone and send to evey group.) 1. Client Type Rgihts Chat Client. Client will login via username and password and this application remember username and password if i check remember me box and automaticly opened when computer is started. Client can't create a chat session or can't see online list. 2. Admin Type Rights If logged user type is admin user can see full agent list and send a message all clients or some clients. If admin user send a message anyone or group this receiver users can reply in this session. If admin close a chat windows. Chat session will close and no one write a new message on a chat window. Fullname display required in chat sessions. Image and emonitons supports needed. For example i can send a jpg image to clients and this automaticly showed in chat box. Clients only can send a emontions. I need full applications and source codes. Language is not important.