If you've looked in Task Manager and wondered what on earth the jusched.exe process is and if you can turn it off, then you are in luck. This process is the Java Update scheduler, which is a process that wastes memory all the time just to check once a month whether there are new updates to Java.
There's a scheduled tasks feature built into Windows for this type of thing… the java update scheduler is obviously not being used for critical updates since it's only scheduled to check once each month. Since I simply can't understand why the process needs to waste my memory, it has to go.

What you'll need to do is open up Control Panel, and then if you are in XP you can click on the Java icon, or in Vista you can click on Additional Options, and then click on Java.
Once you have the Java Control Panel open, select the Update tab, and then uncheck the box for "Check for Updates Automatically"

You'll receive a warning message stating that if somebody finds a security hole in Java that it will take up to a month before you are protected from it:

Does anybody else think that the sentence should read "the fastest and most secure Java" instead of the way it's worded?
After you click the Never Check button above, you'll probably receive this error message if you are in Windows Vista, stating that it also hasn't been properly certified to work with Vista in the first place. Just click that it works correctly.