At the moment I am a little to busy working on a current bug with the MQ Adapter for Biztalk 2004 so I haven't had time to fire up a virtual server image of Pathfinder yet. Has anyone out there had a chance to use it? I've also posted in the Beta Newsgroup but no one there has either used it or replied yet. If you have used it what kind of through put, as in messages per second, are you getting when configured to use FIFO on the send adapter?