Well, DB Mirroring, DB Mail and Event Notifications all use Service Broker, so if you're using any of them, then you've got Service Broker running.
I'll try to lookup how you can check for this later on (heading out the door soon...).
[font="Times New Roman"]-- RBarryYoung[/font], [font="Times New Roman"] (302)375-0451[/font] blog: MovingSQL.com, Twitter: @RBarryYoung[font="Arial Black"]
Proactive Performance Solutions, Inc. [/font][font="Verdana"] "Performance is our middle name."[/font]