I have installed java 1.7 security update 25 and after that my jnlp application stopped working even when I use java 1.6 and I am not using java 1.7 anywhere.
So when we update java 1.7 security update 25 does it impact java 1.6 as well.
I am getting the following exception in java console
Missing Permissions manifest attribute for : <ip>
Java Web Start Error: Empty cookie header string
It shouldn't, but I would say first to use the control panel and MAKE SURE that it really is 1.6 being used for applets.