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I have a JNLP application downloaded. I have installed JRE Version 7 Update 7 from Oracle. I am running Windows 7.

When I double click the JNLP file, I see javaws start running in the process list. It dies a few seconds later. While it's running there is a small blue spinning circle animation next to the mouse cursor. Besides the spinning circle, there is no graphical indication that javaws was started or killed. There is no error message.

Are there any known reasons for why this could happen?

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up vote 3 down vote accepted

Reinstall java 7 update 5 or j6u37. It's a bug with jnlp 1.5 spec. http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7191616

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