I wasn’t aware this plugin even existed for Notepad++!  This is awesome, I have been using another application altogether to compare side by side files for errors / changes while I code.  The cool thing is that it also works with all of the languages that Notepad++ supports and works with also.  My partner Greg and I both use Notepad++ for simple inline code editing, it’s fast and very clean.  My dream for the Notepad++ project is for them to throw a WYSWYG visual editor onto it (I would completely uninstall and burn my Frontpage / Expression DVD’s).

You can download this compare plugin on SOURCEFORGE. (click here)