Wobi is talking about MDAC - Microsoft Data Access Components. Typically, you have something when you install Microsoft Office.
Which version of Office / MDAC do you have installed? The problem may be that they’re newer than the version BusObj needs.
Try doing a Search here on BOB using the keywords MDAC DAO – you’ll find where this has been discussed in the past, such as in this topic.
Anita Craig 
(BOB member since 2002-06-17)