OK, now I'm confused. The previous posts appear to be saying that the .Net ArcGIS Support feature is NOT needed for GDBT 10 to work with ArcGIS 10, and that the GDBT System Requirements page has been updated to reflect that advice. However, what I see on the Requirements page is instructions on how to determine whether or not the .Net Support feature is present in my install, and how to find and install if not. That seems like a contradiction, unless I'm missing something.
In my case, after installing GDBT 10, ArcCatalog crashes every time I try to look at User Information or Spatial Index functions--and the Indexes and Statistics tool (for Oracle) (my favorite) is not even there. When I follow the instructions on the Requirements page, I find that I have no DotNet directory, and DO NOT find the option to install .Net Support in the Change/Install screen in Add/Remove programs (or in just the ArcGIS Desktop 10 installer), as instructed.
Am I missing something here?