Is there a system-wide version of the Preferences API?

In a previous question, I learned about the preferences API. Unfortunately, it only appears to be user-specific preferences. I also have preferences that need to be able to be set across users. What is the platform-independent way to do that in Java?

EDIT:

Good info below, however since implementing I ran into a snag... Tested first on my dev box (Win 7, UAC off) and it works fine. Tried it on the first of my test VMs and it fails... On Win 7 with UAC on, writes fail (I can do a write followed by a read and not get the value I jus开发者_如何转开发t put in there).

Preferences has both user and system prefs, read the docs carefully.

Preferences.systemRoot();
Preferences.userRoot();

The systemNodeForPackage() and systemRoot methods of the Preferences class give you just what you want.