The Msftefd.exe process constantly consumes up to 100 percent of CPU resources when your mailbox language is set to German on an Exchange Server 2007 server

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Article ID: 2411423 - View products that this article applies to.
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SYMPTOMS

Assume that your mailbox language is set to German on a Microsoft Exchange Server 2007 server that has the mailbox server role installed. In this situation, the Microsoft Full-Text Engine Filter Daemon (Msftefd.exe) process constantly consumes up to 100 percent of CPU resources. This behavior may affect client access and message delivery.

CAUSE

This issue occurs because the German word breaker and stemmer driver (Nls400.dll) loaded by the Msftefd.exe process of the Exchange search engine consumes excessive CPU resources. This issue occurs when the Nls400.dll driver performs linguistic analysis on a changed or on a new message size of several megabytes before the message is indexed.

RESOLUTION

To resolve this issue, install the following update rollup:
2602324 Description of Update Rollup 5 for Exchange Server 2007 Service Pack 3

WORKAROUND

To work around this issue, disable the Microsoft Exchange Search Indexer service and the Microsoft Search (Exchange) service on the Exchange Server 2007 server.

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

MORE INFORMATION

For more information about how to change the language for a mailbox, visit the following Microsoft website:
General information about how to change the language for a mailbox
For more information about word breakers and stemmers, visit the following Microsoft website:
General information about word breakers and stemmers
For more information about Full-Text Search architecture, visit the following Microsoft website:
General information about Full-Text Search architecture

Properties

Article ID: 2411423 - Last Review: September 27, 2011 - Revision: 1.0
APPLIES TO
  • Microsoft Exchange Server 2007 Service Pack 3, when used with:
    • Microsoft Exchange Server 2007 Standard Edition
    • Microsoft Exchange Server 2007 Enterprise Edition
Keywords: 
kbqfe kbfix kbsurveynew kbexpertiseinter KB2411423

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