With Opera, you get a choice of whether to get the version with Java support included or the much smaller version without. In Netscape the flag that turns Java support on and off is easy to find in the properties screen. Internet Explorer does not have such an easy to find way of completely turning off Java support but one does exist its just hidden away in a different spot from where you would expect to find it. (This is common of Microsoft programs).
To turn off support for Java in Internet Explorer, you need to go to the Security Tab in the properties screen. Here you will find that your system is set up to categorize web pages into one or more security zones. You will need to turn off Java support separately for each zone where you want it disabled.
To turn off Java support you change the security level for the selected zone to Custom. You can then press the settings button to customize the security options for that zone. Scroll down to the Java section and find the Java Permissions sub-heading. Below this you will find several radio buttons to select the level of validation to be done on Java programs before allowing them to run. To turn Java support off completely, you need to select the Disable Java option from this list. Finally don't forget to press the OK button to save your change.
With Internet Explorer 6, Microsoft have moved the option to turn Java off. It's still under security in the custom settings but now its under the Scripting section and is called Scripting of Java Applets. You need to select the Disable option under this heading and then press OK to save the change.
Unfortunately, making this change only turns off the Java support it doesn't remove the disabled programs from your system.
If you really want to save space on your system and run a browser without Java support then you might consider switching to Opera (which is now a free download). The Opera browser without Java support only takes up 4M of disk space compared to the couple of hundred required for IE.
This article written by Stephen Chapman, Felgall Pty Ltd.