Microsoft KB Archive/822654

= The 32-Bit Version of a Program Runs More Slowly Than the 64-Bit Version on the 64-Bit Editions of Windows Server 2003 =

Article ID: 822654

Article Last Modified on 7/24/2007

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APPLIES TO


 * Microsoft Windows Server 2003, Enterprise x64 Edition
 * Microsoft Windows Server 2003, 64-Bit Datacenter Edition

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SYMPTOMS
If you run a 64-bit version of a program that makes calls to the PSAPI library—for example EnumDeviceDrivers, GetDeviceDriverBaseNameA, and GetDeviceDriverFileNameA—the program runs as expected. However, if you run a 32-bit version of the same program that makes the same calls to the PSAPI library, the program runs much more slowly than expected, and every call that is made take several minutes to complete.



Hotfix Information
A supported hotfix is now 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 service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or 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. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

File Information
The English version of this fix has the file attributes (or later) 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 tool in Control Panel.   Date         Time      Version        Size      File name 10-Jun-2003 20:38     5.2.3790.53    449,024   Wow64.dll



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

Keywords: kbhotfixserver kbqfe kbbug kbfix kbqfe kbwinserv2003presp1fix KB822654

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