How to Programm PCAnywhere-Like...

     Suppose that, which what I really want to , I want to gain more experience  on delphi programming. What I want is to programm that can purform some tasks like PCAnywhere. The main point is that I want to create my own program that can  monitor incomming call and auto-answer such call And to perform files transferring through a wire. How can I accomplish such a task? I just have a rasapi32.pas , which is a interface unit to rasapi32.dll that can perform remote dialing with specified user name and password, on the other hand, client side. How can I create program to be server side that can automatically accept incoming call and authenticate such call to that programm. Moreover, If  a connection can be established. How can I transfer file through a wire. I need your suggestion that can guide me through the rest of these tasks or to any website the published fully documented programm like this. I want to know it clearly. Pleaseee give me a hand, and I'll give you 200 points if you answer me impressively.