Here is *THE* edition of Notepad2 for power users and programmers:

Notepad2-mod , with patches by ~Kai Liu , updated and forked by ~XhmikosR


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By the author:
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This version of Notepad2 has been modified from Florian Balmer's original version
using patches by Kai Liu and others.

Notable changes:
* Code folding
* Support for bookmarks
* Syntax highlighting support for AutoHotKey, AutoIt3, Bash, LaTeX, Lua, Ruby, Tcl, NSIS and Inno Setup scripts
* Native x86-64 support
* Support for registry-based Notepad replacement

Supported Operating Systems: Windows XP, Vista, 7 both 32-bit and 64-bit

More information:
* Source code and binaries: http://code.google.com/p/notepad2-mod/
* Code folding usage guide: http://code.google.com/p/notepad2-mod/w ... UsageNotes
* Kai Liu's website: http://code.kliu.org/misc/notepad2/


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Important notes by me:
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If you are planning on installing this into your system...
DO NOT RUN THE INSTALLER FILE !!! it has a bug, and it may crash your system.
You will get an error pop-up and then everything freezes.
This happened on my Win XP w/SP2 box. The version I'm referring to is:
http://notepad2-mod.googlecode.com/file ... _Setup.exe

To install it without problems, just do this:
The EXE unpacks with 7-zip or WinRAR, so just right-click it and extract the files .
One of the unpacked files is named "notepad2.inf" .
Right click it and choose "install" from your context menu; Done .
It uninstalls at "Add-Remove-Programs" .

If you don't want to install it, just run the unpacked files; it is natively portable (INI file in AppDirectory) .

OK, that comment system upgrade is pretty cool now! I down voted to remove the comment. Cheers webfork.

If you want all these additional features, why not just use Notepad++? Notepad2's strength was always its complete simplicity.