Portability with MS VM: ClassNotFoundException

Question

All jittery and fizzing with excitement, I uploaded my first non-trivial Java applet here: http://home.sc.rr.com/doradus/bzar.html
It works fine on my computer, from either Netscape or IE 6. However, the people with whom I intended to share the applet could not access it, apparently because they used the Microsoft VM:
[quote from the user]
In IE6 I get the following message in the Java console (Microsoft VM):
Error loading class: Bzar
java.lang.NoClassDefFoundError
java.lang.ClassNotFoundException: Bzar
at com/ms/vm/loader/URLClassLoader.loadClass
at com/ms/vm/loader/URLClassLoader.loadClass
at com/ms/applet/AppletPanel.securedClassLoad
at com/ms/applet/AppletPanel.processSentEvent
at com/ms/applet/AppletPanel.processSentEvent
at com/ms/applet/AppletPanel.run
at java/lang/Thread.run
Works fine in Mozilla 1.0 (Sun VM).
I don't think the problem lies in MS VM's signature-requiring security measures, as another Java newbie posted a similar, unsigned applet that this same user could access from IE. The author of that applet was also unable to view my applet.
Can anyone tell me what's going on and how to fix this problem?
(If you're interested, this thread might give you more context: http://www.greylabyrinth.com/Forums/Forum5/HTML/004316.html )

Answer 1

compile with
javac -target 1.1 <filenames>
the jdk 1.4 uses a new type of bytecode (.class file) so old versions don't understand it, I don't know what the new bytecodes do, but I've found that if you want compatability you shoud -target the lowest common denominator (I think the MS VM is 1.1 or 1.2 compatible, partially 1.3 but no higher)
also you missed a " in the source code link, it shows as
<a href="bzar.java>
Shish
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