Programmer's Notepad for Editing

Another free text editor that runs on Windows is Programmer's Notepad:

http://www.pnotepad.org/

I prefer Notepad++, but I do also use Programmer's Notepad.  I like using a variety of editors.  Programmer's Notepad has what they call a "portable edition,"  but I use the one with an installer.
After it is installed and launched, I recommend going to Tools > Options > Defaults and check "Show Line Numbers."

Robert