In ArcGIS 9.x if a Feature Class is registered with a Class Extension the CLSID of the extension is recorded in a table in the sde schema called sde.GDB_OBJECTCLASSES (EXTCLSID field).

However in ArcGIS 10 there is no such table, and I can't find anything comparable in an SDE 10 database. I assume this information must now be stored in the data server's registry, but I am not sure where to start.

I am trying to debug issues apparently caused by an upgraded (ArcGIS v10) Class Extension updating data in a Feature Class originally registered with a v9.3 Class Extension and held in a v9.3 SDE database (both versions of the extension share the same GUID), so any insight on this would be much appreciated.


Question: Where can I find the duration of a bus trip on Gran Canaria?
Answer: One option appears to be a shuttle, if you would consider that.

It  runs from the airport to Agaete, and appears to take 1 hour and 20 minutes.  

At the very least, that should help give you an idea of the time it takes.