It didn't work for me. I had half expected it not to, since the Registry
tweak hadn't helped, but I was hoping maybe the Registry tweak hadn't helped
because the conflict was with nVidia drivers as well as the HP Share-to-Web
software.
I downloaded the "new and improved" update yesterday, and when I got around
to restarting the computer, I was back to Square One. I had hoped I might be
able to find a way to uninstall the Share-to-Web software, but I couldn't
see anything obvious--it looked like I would have had to uninstall the HP
scanning software entirely. So I looked for the offending process mentioned
in KB918165 (hpgs2wnd.exe) and tried to delete it, but Windows said it was
in use, so I pulled up Task Manager and stopped it, then deleted it.
The next time I tried to use File | Open in Word, I got a prompt (twice) to
run the HP installer to repair the HP scanning software install. I declined
twice and had no further problems. Since restarting this morning I have had
no problems and not been asked to install anything, so I'm hoping I'm out of
the woods, but it took more work than just downloading the "corrected"
update.