It is basically a simple editor that can recognize XML document structures and schema.
It has a tree view that is synchronized with its node text view which lets it quickly modify both the nodes' names and the values they contain.
It comes with an incremental search in both tree and text views that display the key you want as you write it.
The program has been fully optimized to offer amazing performance. This way, loading a 3 MB XML document will only take a second.
XML Notepad 2006 includes a tool for you to validate schema. If you make a mistake while developing it, the program will immediately let you know.