Recommended Version 6 Update 17 (filesize: ~ 10 MB)
Windows 7, Vista, XP, 2000, 2003 and 2008 Server


Java software powers the onboard computers in toys, cars, planes, rockets, and even the NASA Mars Rover. It brings interactivity to the Internet, real-time graphics to television, instant imaging to cameras, and multi-player games to mobile phones and desktop PCs. Java technology goes everywhere you go.

Verify Your Java Software Installation

http://java.com/en/download/installed.jsp