If you get an error that an RDS.DataSpace or RDS.DataControl object doesn't load, make sure you are using the correct class ID. The class IDs for these objects have changed from version 1.0 and 1.1. The correct class IDs are listed as follows.
Object | Class ID |
RDS.DataControl | BD96C556-65A3-11D0-983A-00C04FC29E33 |
RDS.DataSpace | BD96C556-65A3-11D0-983A-00C04FC29E36 |