Chat Server Methodics

[Incubbus]

Hey...

now that i did a lot of stuff with Winsock etc i´d like to create a little chat server; but i am unsure about the implementation:

I cant get my head around what classes/interfaces i want to create for which functions in the servers´ program...

atm im thinkin about:

class Server:
->Setting basic Information
->Start/Stop
->Port
->Get Statistics
->Basic Login
->Basic Registering New Acc
->Accepting and handling new connectins
->Chat

class UserManager:
->handles the storage of user data
->serializes all account infos
->Login Behind the scenes
->Register New Accounts
->Delete
->etc...

im not really sure about this
maybe i should do the chatting itself via another new interface?

do you have any tips/suggestions/hints for me?:)...

greetz,
Inc