NOTEPAD ++

About
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