Open Notepad, click on the "DeskPins" icon on the Taskbar and then click anywhere within the Notepad window to keep it on top. Go to Dropbox.com and download the Always On Top ZIP file.

In case you missed it, Microsoft resurrected the old XML Notepad last year. The new version, XML Notepad 2007, is a .NET 2.0 application for which source code is available on CodePlex. I find it ...

Microsoft is distributing new preview versions of the rudimentary text editor Notepad in the Insider channels. It now learns advanced text formatting and also allows Markdown-style input.