Swiss File Knife
a command line
free external tools,
the free notepad++, available for download here (take the .bin.zip), provides essential features like a straight GUI, macro recording, syntax highlighting and vertical block copying (through alt+mouse). You can choose between an installer version or the .bin.zip, which contains an executable without install effort, perfect for every usb stick.
Install Notepad++, for example in a directory c:\app\npp, then
You may also right click on the reload button to have changed files reloaded automatically.