Notepad++ 6.5 released
Notepad++ is a free (as in "free speech" and also as in "free 
beer") source code editor and Notepad replacement that supports several 
languages. Running in the MS Windows environment, its use is governed by
 GPL License.
Based on the powerful editing component Scintilla, Notepad++
 is written in C++ and uses pure Win32 API and STL which ensures a 
higher execution speed and smaller program size. By optimizing as many 
routines as possible without losing user friendliness, Notepad++
 is trying to reduce the world carbon dioxide emissions. When using less
 CPU power, the PC can throttle down and reduce power consumption, 
resulting in a greener environment.