title: What's the algorithm behind Robocopy?
body: <p>I am curious to know what makes Robocopy (Robust File Copy) so fast and robust. Any body knows what is the API/Algo used for Robocopy? Anybody studied Robocopy?</p>
  
  <p>I am asking since I have to write a method (in .NET/C#) which will copy directories/files fast and without errors... The amount of data can go up to 15Gb and I cannot simply call Robocopy for various reasons.</p>
  
  <p>Thanks!</p>