Can a signed applet run classes from disk?

Hi all,
I have a signed applet jar and a signed jar file somewhere on disk (I can ensure the jar file is available on client's machine before i run the applet). My applet doesn't let me have file io access from the classes in the jar file on disk. It gives the following exception:
java.security.AccessControlException: access denied (java.io.FilePermission C:\test.jar read)
However I do have file io access from classes in the applet jar itself. Both the jar files are signed.
Is there any way to get around the plug-in security in this case?
Using installed extension (jar/lib/ext) is not an option, unfortunately.
Any help will be appreciated.
-Jas

Is it not the same problem of JavaScript which calls Java ?
Harmemejer posted : http://forum.java.sun.com/thread.jsp?forum=63&thread=524815 (second post) ???
Hope it helps
Rafax.

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