An application that uses the OLE DB Simple Provider (Msdaosp.dll) with Microsoft Data Access Components (MDAC) 2.8 Service Pack 2 will crash with an access violation in Windows Server 2003 Service Pack 1

On a Microsoft Windows Server 2003 Service Pack 1 (SP1)-based computer, you find that an application that uses the OLE DB Simple Provider (Msdaosp.dll) with Microsoft Data Access Components (MDAC) 2.8 Service Pack 2 (SP2) will crash with an access violation. The same application will work correctly with earlier versions of MDAC.

This problem occurs because an overwrite occurs during an attempt to null-terminate a string. This overwrite was implemented as a security measure in MDAC 2.8 SP2. This overwrite corrupts the heap and causes the access violation.

Service pack information

To resolve this problem, obtain the latest service pack for Windows Server 2003. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

You must have Windows Server 2003 SP1 installed to apply this hotfix.

Restart requirement

You must restart your computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.Windows Server 2003 with SP1, x86-based versionsWindows Server 2003 with SP1, x64-based versionsWindows Server 2003 with SP1, Itanium-based versions

Microsoft has confirmed that this is a bug in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Windows Server 2003 Service Pack 2.

For more information, click the following article number to view the article in the Microsoft Knowledge Base: