Gvim on windows is an easy way to get a tool that will do search, regex replacement, quick text editing macros, etc. All you need is to run executable (gvim.exe), there is no need to install, so from a copy of gvim.exe on a usb drive, dropbox, or whatever, (and by memorizing your favorite vim settings!) you can do some pretty advanced text editing that surpasses whatever is available in a stock windows install.