COMPILATION OF CODE

         I am worry bcz I copied whole code from visual studio and tried to install whole code directly on .net compiler ,it gave me error ! why?

Sir make a tutorial on the basic of visual studio like

what are the folders(like solution ,debug , bin etc),

what is their use one by one ,

In which directory all the header library stored (using System; where is system stored) ,

what is dll file ,

How to make installable app ,

what is msi and exe ,  

How to open any sowtware in visual studio to see original files ,

How login application will work on other's computer bcz they don't have visual studio or mysql server ,

and many more