MDAC 2.5 SDK - OLE DB Programmer's Reference
Appendix C: OLE DB Properties
Property group: Data Source Information
Property set: DBPROPSET_DATASOURCEINFO
Type: VT_BSTR
Typical R/W: R
Description: Catalog Term
Indicates the name the data source object uses for a catalog—for example, "catalog", "database", or "directory". This is used for building user interfaces.