I am using Win 7 and IE9. As the title says, anytime when I go to a page which runs Java Applet, IE just crashes. I uninstalled all or anything that has to do with Java and reinstalled the required ones. Rebooted the box and it did not solve the problem.
Oracle has a very good link on this questions. I did what is specified in the link and it did not fix it either. After some frustrating trail and error, I noticed, the IE that I am running is 32 bit, but my OS is 64 bit. So I ended up downloading IE9 64 bit and installed Java 64 bit and that is it. Now it works like a champ.
Thought this might help someone.