Extract to "C:\Program Files\Joost\xulrunner\" set the command line in GameEx to use the loader...this is early work...and not fully correct as of yet. Oh and don't show desktop...there is a mild bug in Joost which maybe you wish to report while I work on other things...and thats that it fails to take focus, and fails to assert its self in the upper most z-order when launched. Those looking to toy with this should head over to http://www.joost.com/presents/gigaom-newteevee/ for an invite to test the beta.