"The filename or extension is too long" error message in the crawl log when you perform a crawl on a SharePoint Foundation 2010 or SharePoint Server 2010 site

Symptoms

Assume that a custom list in a Microsoft SharePoint Foundation 2010 site or in a Microsoft SharePoint Server 2010 site contains a multiline text column. If the data size of the custom column is more than 100 kilobytes (KB), only the first 100 KB of the data is indexed when you perform a crawl on the SharePoint site. Additionally, you receive the following error message:

The filename or extension is too long.

Resolution

To resolve this issue, apply the following hotfix packages:

  • 2276336 Description of the SharePoint Server 2010 hotfix package (osrchwfe-x-none.msp): August 31, 2010

  • 2266423 Description of the SharePoint Foundation 2010 hotfix package (Sts-x-none.msp): August 31, 2010

Status

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

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