I just added a registry key to have "copy to .." in my right click context menu. I used this how-to:
http://www.howtogeek.com/howto/windows/add-copy-to-move-to-to-the-windows-explorer-right-click-menu/
What is puzzling me is where to get the information from that I have to enter this strange key value
{C2FBB630-2971-11D1-A18C-00C04FD75D13}
Which seems to me is some sort of hexadecimal value enabling the right click Explorer menu. But how exactly was this menu obtained in the first place? It just seems to me everybody or at least many people know about this hack but no one seems to know what this value stands for and where does it come from and how it was obtained. Is there a whitepaper from Microsoft or something?