Without MSJVM error in IE6 not in Firefox

Our company wants to remove MSJVM (XP SP2) but a strange effect occurs when running this testscript (JRE 1.5.0_06 installed):

<applet code=Applet1.class width="200" height="200">

Your browser does not support the <code>applet</code> tag.

</applet>

In IE the warning text (Your browser...) appears; in Firefox the applet is simply loaded. In the console, both IE and Mozilla are tagged for 'applet support'. It worked with IE6 until the MSJVM removal tool removed msjava.dll and other files.

All testpages show a correctly working JRE, and java websites with objecttags work OK. It's simply the applet part that seems to be neglected?!

[699 byte] By [RINGELENSTEINa] at [2007-10-2 20:06:56]
# 1
The way how to embed in an HTML page an applet has evolved over time. Check out the details in the documentation.
BIJ001a at 2007-7-13 22:47:13 > top of Java-index,Java HotSpot Virtual Machine,Specifications...
# 2

The strange part is that this effect doesn't appear when a fresh XP SP2 with 1.5.0_06 (and due to SP2 without MSJVM) is being used. Somehow it seems a link between XP SP1 and IE6 seems to remain somewhere, which disturbs this applet thing... Other tags like object don't suffer from removing the MSJVM.

RINGELENSTEINa at 2007-7-13 22:47:13 > top of Java-index,Java HotSpot Virtual Machine,Specifications...