Thanks. I feel pretty stupid. I had gotten as far as oHT.Add 2, "two" yesterday. As I mentioned, I wasn't getting an error like I was with Set oDic = CreateObject("System.Collections.DictionaryBase"), but I was watching the oHT object in the locals window and seeing this. I just assumed that the object wasn't taking my .Add attempts.
What about the DictionaryBase, any idea why it doesn't work while the others seem to be content?