2 things here. Answer either one.
1) How do I write a program to configure the registry, so that whenever a file of a certain extension is clicked, Windows will fire up my application and my application will open the file?
2) Add a new item to the "right-click pop-up". When you right-click a file, a pop-up comes up right? I wanna add an item inside there, so that whenever someone clicks the item, my application will automactically open the selected file.