Notepad++ is a free source code editor and Notepad replacement, which
supports several programming languages, running under the MS Windows
environment. Based on the Scintilla edit component (a very powerful editor
component), written in C++ with pure win32 api and STL that ensures the
higher execution speed and smaller size of the program. Additional downloads
include: Source code files; Plugins - over 75 plugins for everything from
AutoSave to spell checker, text-to-speech to XML editing. (in Programming)