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FIX: AV Marshalling the Same ADO Recordset on Multiple Threads
Article ID: 274265 - View products that this article applies to.
This article was previously published under Q274265
When sharing a single instance of a disconnected ActiveX Data Objects (ADO) Recordset object over multiple threads on a multiprocessor computer, an access violation (AV) may occur when simultaneously marshalling the recordset to two threads.
The ADO marshalling code for disconnected recordsets is not thread-safe for multiprocessor computers.
To resolve this problem, obtain the latest service pack for Microsoft MDAC 2.5. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
293312-or-To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/293312/EN-US/ )INFO: How to Obtain the Latest MDAC 2.5 Service Pack
260910The English version of this fix should have the following file attributes or later:
(http://support.microsoft.com/kb/260910/EN-US/ )How to Obtain the Latest Windows 2000 Service Pack
Date Version Size File name Platform ------------------------------------------------------ 02/20/2001 2.53.7220.0 327,952 Msadce.dll x86 02/20/2001 2.53.7220.0 205,072 Msdaprst.dll x86
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Microsoft MDAC 2.5 Service Pack 3. This problem was first corrected in Windows 2000 Service Pack 3.
To reproduce this problem, the following conditions must be met:
Article ID: 274265 - Last Review: September 26, 2005 - Revision: 3.3