Can't run JMF Applet in IE

OS: win2000 professional
JRE: Jdk-1.4.0._01
JMF: 2.1
Borwser: IE 5.0
I have completed installing the JMF, but no JMF Applet
can be shown in IE, the messages always are
"class Not Found, javax.media.ControllerListener" or
"class Not Found, javax.media.Player"
anyone can help me? thanks!

I think I found where the problem comes from.
In one machine I installed jmf as admin I found following registy key:
LocalMachine--software--microsoft--javavm
there is one value called classpath which contains the jmf directory.
I suppose this key make java plug-in find our jmf library.
However in anothre machine I installed jmf without admin privalages. I didn't see that key contain my jmf directory. This is because I don't have the privalages to modify this key. The installation doesn't give me any warning messages. I think this is the problem.
When Iinclude that tag <APPLET archive="jmf.jar" in the html pages. The java console said that the applet don't have the permission to use capture audio devices. So..... It still don't work
Any suggestions?

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I have found many question about that but I don't undertand reply.
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I have restrictions, I can't install anything on a client machine. What can I make ?
Is there solutions ?
Is it possible to install few components to run the JMF Applet and desinstall it properly ?
Thanks.
Sorry I don't speak well english.

private void detectDevices(Label la) {
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Can't run JMF Applet in IE

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