Well DavidR,
I posted about this thing before here in the forum, about giving your scan some bite, I think there was not much changed after this trust dependencies came in with Windows NT. And thinking about it that is why automatic installs, updates, plug and play, host memstick use functionality are that dangerous, at least could mean a threat.
This should not be as default configuration. see here for my contribution, all that can be used for a good purpose can also be used for malicious purposes. See:
http://forum.avast.com/index.php?topic=14363.0To dwell a bit more on privilegers here, just have to set a process to Äct as a part of the Operating System"privilege using the Local Security Settings, and then reboot the system. In other way to get this result is to modify machine.config by setting the username attribute equal to "system" in the ProcessModel element, and then reset ISS. Else things do not work and you will get an exeption (Sigh of relief here). To get to the privilege lower than the mentioned one we have to set it to Äct as part of Operating System"privilege using Local Security Setting.
polonus