XADM: High CPU Use by Store.exe on Exchange 2000 Server SP1 Computer

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Article ID: 304233 - View products that this article applies to.
This article was previously published under Q304233
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SYMPTOMS

The Exchange 2000 information store (Store.exe) process attempts to compare every folder name within an authenticated GET request for a URL. If the URL contains more than a 100 nested folders the store will compare against each folder name in an attempt to locate a match. This process may cause the system to utilize an increasing amount of available processing time for an extended period of time. This problem was reproduced when the URL had 1000 or more invalid folder names that were nested. (For example: folder1\folder2\folder3\....folder1000).

CAUSE

This problem can occur if an authenticated GET request for an invalid URL that contains a large number of invalid nested folders is performed against a mailbox. The information store attempts to locate a matching folder for each folder name.

RESOLUTION

To resolve this problem, obtain the latest service pack for Microsoft Exchange 2000 Server. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
301378 XGEN: How to Obtain the Latest Exchange 2000 Server Service Pack
The following file is available for download from the Microsoft Download Center:
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Download
Download Q303451engi386.exe now
Release Date: September 26, 2001

For additional information about how to download Microsoft Support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591 How to Obtain Microsoft Support Files from Online Services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help to prevent any unauthorized changes to the file. The English version of this fix should have the following file attributes or later:

Component: Information store

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File nameVersion
Store.exe6.0.4720.29
Jcb.dll6.0.4720.29
Exoledb.dll6.0.4720.29
Excdo.dll6.0.4720.29
Mdbsz.dll6.0.4720.29

NOTE: Because of file dependencies, this update requires Microsoft Exchange Server 2000 Service Pack 1.

STATUS

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 Exchange 2000 Server Service Pack 2.

MORE INFORMATION

For more information on this vulnerability, see the following Microsoft Web site:
http://www.microsoft.com/technet/security/bulletin/MS01-049.mspx

Properties

Article ID: 304233 - Last Review: October 24, 2013 - Revision: 3.6
APPLIES TO
  • Microsoft Exchange Server 2000 Service Pack 1
Keywords: 
kbnosurvey kbarchive kbbug kbexchange2000sp2fix kbfix kbsecurity KB304233

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