The filtering process could not be initialized. Verify that the file extension is a known type and is correct.
On analyzing SharePoint search crawl logs, found many instances of the error: “The filtering process could not be initialized. Verify that the file extension is a known type and is correct.” Root cause:This is because, SharePoint server 2007 search crawler doesn’t recognize Office 2010 file types (such as .docx, .pptx, .xlsx,etc). Solution:…
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