Diffing Files In Netbeans 6.5 - In Favourites, Without projects

In Netbeans it is really easy to diff two files, without even having / creating a project:

1. Open a text file from favorites (ctrl +3), or right click on it
   
2. Choose from context menu (right click again): Tools -> Diff To

Netbeans opens a nice diff view, which allows even moving different blocks back and forth between the two files.