Stefan Mileschin

Rainmeter is a lightweight application for customizing your Windows desktop. Rainmeter works by installing community made ‘skins’, many of which can change how the desktop works with widgets like app launchers, RSS and email readers, calendars, weather reports, and many others. It has been around since Windows XP, where it was used as a tool for displaying basic info on the desktop, but has since gained a large community following which has produced high quality skins which can change the whole desktop experience.

http://www.howtogeek.com/231711/how-...ndows-desktop/