I read through this entire thread, and even tried related threads (who's links were included). Nothing worked. History:
1. I tried upgrading iTunes (using the 9.2.1 upgrade of about 8-9MB), but the "corefoundation.dll" missing error still appeared on startup.
2. I tried repairing iTunes (using the full 90MB+ download of the full program), but the same "corefoundation.dll" missing error appeared on startup.
3. I tried removing Mobile Me (using Control Panel>Programs>Unintall) and that removed the error message on startup, but my iTunes still crashed when starting the program and trying to access the Apple Store. I could still play files in my library, but I can't access the Apple Store.
4. I even tried the copy-and-paste of the SQL file above, and then a restart again, but things didn't change.
5. I even when into iTunes and ran diagnostics. They came up with all "green" lights, except for things that don't apply to me, like iPad and iPhone synch.
What more can I do?