The Triggers Admin utility (TrigAdm.exe) helps you manage MSMQ triggers from the command line.
Currently there are versions available for:

• MSMQ 1.0/2.0 (Windows NT4, Windows 2000)
• MSMQ 3.0 (Windows XP)
• MSMQ 3.0 (Windows Server 2003)

but nothing yet for MSMQ 4.0 (Windows Vista).

Is there any demand out there for an updated utility?

Please let me know so I can contact interested parties off-line to discuss.