Ok... I have to say that all that scrubbing and polishing worked. No complaints from True Vector anymore.
(and I usually/always get good, UNcorrupted downloads... Google Toolbar doesn't screw anything up for me, but as I said, I have the 'advanced' spy/reporting features turned off).
'Deep cleaning' should be an install option (including reboot/cleaning)... background processes are another matter. Microsoft or someone else? (hint) needs to create a windows-processes-only startup profile (-not- 'Safe Mode')... instead of users having to (un)build it. Old windows could start up that way with a key press(hold), not starting anything else.