"DAO is not installed" error when opening RoboHelp 8

RoboHelp 8 HTML has been installed and working fine on my computer since March, 2011. I am using Windows 7, Service Pack 1. Then, in November, 2012, a network administrator installed some Microsoft security updates on my computer. Afterwards, when I attempted to start RoboHelp, the following error appeared, and the application wouldn't open:
"DAO is not installed. This application cannot run without DAO, so please install DAO then try running the application again."
I followed the instructions on (http://forums.adobe.com/thread/249697) to reinstall and register dao360.dll, but RoboHelp still won't open, and the same error message appears. Please help!

Just one gotcha. If you open your project in Rh10, you cannot go back. Make sure you take a copy of the Rh9 version of your project. You should anyway but if your manager does not approve the upgrade...
See www.grainge.org for RoboHelp and Authoring tips
@petergrainge

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