I was demoing SharePoint to one of our clients recently and banging on about how good the InfoPath forms were. I said - "It takes a couple of minutes to get a form from the InfoPath client to the MOSS web site. Watch this..."

Up pops a dialog - The following URL is not valid: http://myfabulousdemo/w00t etc...

Oh, ok - let me just confirm my Loopback adapter is running... yes... and that I have the site correct... yes... and that there's a root site (a site that can be referenced like this http://myfabulousdemo)... yes... hmmm...

Well if I was able to show you how easy it was to publish an InfoPath form, then you would see a very similar interface to this one... and so on.

It turns out that restarting the "System Event Notification" service (and as an added dependency bonus, the COM+ system Application service) makes it work. Thanks edwin!

Cheers all!