DAO stands for Microsoft's Data Access Objects. It is installed in C:\Program Files\Common Files\Microsoft Shared\DAO. It is required for working with databases. If it is not installed on your machine, you can get it from MSDN.
Should I do the Start and Run process described in this thread?
Thank you for the help. Had to reinstall Jet35sp3 in order to get RH to work. I am up and running.