Microsoft KB Archive/190960

= PRB: Memory Leak When Traversing OLE DB Rowset =

Article ID: 190960

Article Last Modified on 8/12/2005

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APPLIES TO


 * Microsoft Visual Studio 6.0 Enterprise Edition
 * Microsoft Visual C++ 6.0 Professional Edition
 * Microsoft Visual Basic 6.0 Enterprise Edition

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This article was previously published under Q190960



SYMPTOMS
When you use the OLE DB Consumer template classes, columns that are mapped to BSTRs or interfaces leak memory (for example, IUnknown or ISequentialStream). The leak occurs after each move through the rowset.



CAUSE
The OLE DB Consumer templates do not free BSTRs, VARIANTs, interfaces, or chapters that are retrieved after moving to a record.



RESOLUTION
You must explicitly call CAccessorRowset::FreeRecordMemory to free the BSTRs, VARIANTs, interfaces, or chapters allocated for each record. Call FreeRecordMemory before moving to the next record.



STATUS
This behavior is by design.

