MDAC 2.5 SDK - OLE DB Programmer's Reference
Chapter 2: Data Source and Session Objects

Enumerators

An enumerator is an object that lists available data source objects and other enumerators.

The enumerator object cotype is defined as follows. For more information about cotypes, see "OLE DB Objects" in Chapter 1, "Overview of OLE DB."

CoType TEnumerator {
   [mandatory]   IParseDisplayName;
   [mandatory]   ISourcesRowset;
   [optional]    IDBInitialize;
   [optional]    IDBProperties;
   [optional]    ISupportErrorInfo;
}