javaserver faces & internet explorer

I just deployed the guessNumber example at the newest version of the sun java application server. Using firefox to access the application goes well. However, when I use internet explorer I get a security warning. The security warning asks whether I want to save the file or search for a application to open the file. With the warning I get information about the name, type and host of the file: guessNumber, unknown filetype and localhost.

Anyone knows what exactly happens?

[487 byte] By [martijn9999a] at [2007-11-26 16:18:50]