Microsoft KB Archive/230067

= ADO Cursor Engine Alignment Faults Cause Performance Issues on Alpha Platforms =

Article ID: 230067

Article Last Modified on 10/7/2005

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APPLIES TO


 * Microsoft ActiveX Data Objects 2.0
 * Microsoft ActiveX Data Objects 2.1
 * Microsoft ActiveX Data Objects 2.1 Service Pack 1

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This article was previously published under Q230067



SYMPTOMS
When using ADO on an Alpha platform, the client cursor engine generates a number of alignment faults, which can cause performance problems.



CAUSE
The pointers being used by the Alpha version of the ADO client cursor engine are not being properly aligned with page boundaries. This causes a performance hit when address fixups need to be performed.



RESOLUTION
A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this fix should have the following file attributes or later:   Date      Time    Version      Size    File name     Platform -  4/26/99           2.10.4026    706KB   msadce.dll    Alpha



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

Keywords: kbbug kbfix kbqfe kbado210fix kbmdacnosweep kbhotfixserver KB230067

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