Creating Documentation and code description

Question

Hi Guys can you help me with this: 1. How can I create an on-the-fly documentation generation for my codes so that when i compile my application the documentation is written in an html file? 2. How can i create my own description of the method i defined in my class such that when i call this method a TOOLTIP will come out exposing the Description i wrote for that particular method. Just like the members of any class in any assembly. When you press period (.) the members will come out and a tooltip will be displayed categorically showing the signature, return type and purpose for this method. Tnx a lot!