Run File Extraction Functions Out of Process

The out-of-process setting specified when you create the Filter object or in the formats.ini is automatically propagated to the File Extraction API. When you extract subfiles from container files and pass the files for filtering out of process, Filter generates a server called kvoop.exe for filtering and a duplicate server also called kvoop.exe for file extraction. These servers are independent, so if the filtering service stops responding, the file extraction service can continue extracting files uninterrupted.

Restart the File Extraction Server

If the file extraction server fails on a file and throws the exception KVError_InvalidOopDriverSignature or KVError_InvalidOopServiceSignature, you must restart the server by recreating the Filter object, and process the source file again.


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