MDAC 2.5 SDK - OLE DB Programmer's Reference
Appendix C: OLE DB Properties

Property group: Rowset
Property set: DBPROPSET_ROWSET
Column? N
Type: VT_BOOL
Typical R/W: R/W
Description: IRowsetUpdate
| Value | Meaning | 
| VARIANT_TRUE | The rowset supports the specified interface; automatically sets DBPROP_IRowsetChange to VARIANT_TRUE. | 
| VARIANT_FALSE | The rowset does not support the specified interface. | 
Note Providers that support an interface must support the property associated with that interface with a value of VARIANT_TRUE. These properties are primarily used to request interfaces through ICommandProperties::SetProperties.