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_I4
Typical R/W: R
Description: COM Service Support
A bitmask specifying the provider's support for COM services. The following flag can be set:
DBPROPVAL_CM_TRANSACTIONS—The provider enlists in COM+ transactions directly. The provider either does not implement ITransactionLocal or returns XACT_E_XTIONEXISTS when ITransactionLocal::StartTransaction is called. The consumer can use this value to determine whether to use OLE DB or COM+ methods to commit or abort a transaction.