Java SE 6 Release Notes
Microsoft Windows Installation (64-bit)
See supported System Configurations for information about supported platforms, operating systems, desktop managers, and browsers.
This procedure installs the JDK. And as of JDK 6u12 and subsequent releases, it installs the Java Plugin, Java Web Start, and public Java Runtime Environment. (Note that prior to JDK 6u12, Java Plugin, Java Web Start were not yet available for 64-bit Windows.)