Unable to disable Java6u14/15 on Internet Explorer 7 ?!

I wanted to make a test for users without the Java plugin and I was quite surprised that the only way I found to make it was to completly uninstall the Java plugin ( for Internet Explorer 7) ?!

1 - unable to uncheck Internet Explorer in Java plugin control panel (checkbox is grayed)
2 - desactivate the complementary module (Java plugin) in IE doesn’t have any effect, Java jut still run fine when I open a webpag with an Applet …

any idea ?

I can in IE8, but of course that doesn’t help your case, unless you want to update.