Vista Home Premium: WIA service re-enables itself

Hello

On numerous occasions I have manually disabled Windows Image Acquisition

(WIA) service on my Vista Home Premium machine. It stays 'Disabled' for

a while, but eventually I discover that WIA service is running again

(and its startup type changed to 'Automatic'). Unfortunately so far I

was unable to catch the culprit. I have no idea when exactly it switches

from 'Disabled' to 'Automatic'. Does anyone know what/who is responsible

for changing the startup type for the service behind my back? Any ideas

appreciated.

Best regards,

Andrey