Recently I noticed an error when starting NotePad++, “Load config.xml failed”. NotePad++ proceeded to work with a slightly different skin but this error was annoying. The problem started well after my latest version upgrade so I am not sure what triggered the problem. I have been successful running the latest version of Notepad++ so I was pretty sure this problem would go away when they issued the next version. Today I finally got annoyed enough to fix the problem. The config.xml file in the Application Data folder for my profile had a zero length. I copied over a config.xml from the NotePad++ directory under Programs Files. This post in the sourceforge forum says about the same thing, http://sourceforge.net/projects/notepad-plus/forums/forum/331754/topic/1465204?message=4294797.