I cannot register msxml4.dll which is causing me to not be able to install and use Quickbooks. I got an error from Quickbooks last week, and the solution was to register the msxml4.dll. When that failed, it was to uninstall and run the KB936181 update to reinstall MSXML 4.0. Did that, and it still doesn't register. Any help on how to fully clean this then reinstall would be greatly appreciated!