JDK-Info:
---------
java version "1.6.0-ea"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.6.0-ea-b50)
Java HotSpot(TM) Client VM (build 1.6.0-ea-b50, mixed mode)


Operating System:
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AMD64 Windows 2003/XP


Steps to Reproduce:
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1) Install 32 bit jre b50 on AMD64 Windows 2003/XP
2) Clean cache (\rm -rf ~/.java)
3) Launch a JNLP application
(./javaws http://java.sun.com/products/javawebstart/apps/notepad.jnlp)
4) Launch Cache viewer (./javaws -viewer)
5) Select the application and create shortcut
6) Double click on the desktop icon of the application

The Application fails to launch (A command prompt window displays the error message and exits immediately)

"NoClassDefFoundError" is thrown as the application searches for path ..\Sun\Java\Deployment\cache\6/0\ instead of ..\Sun\Java\Deployment\cache\6.0\

Snapshot of error message command prompt window attached (notepad_noclass.gif)