File Content Extraction 26.1
Filter SDK C++ Programming Guide

# Enable or Disable Legacy Out-of-Process Error Logging

IMPORTANT: Out-of-process error logging is available only when you use the legacy out-of-process method. See Use the Legacy Out-of-Process Method.

You can enable or disable out-of-process error logging by using either the API or environment variables. By default, a file called `kvoop.log` is created in the system temporary directory; however, you can change the path and file name of this file (see Configure the Legacy Out-of-Process Error Log).

To enable or disable out-of-process error logging

- To enable or disable logging through the C++ API, call `oop_error_log()` on your `Configuration` object with the appropriate Boolean value. See The Configuration Class for more information.

- To enable logging without using the API, set the environment variable `KVOOPLOGON` and set the variable value to `1`. To disable logging, do not set the `KVOOPLOGON` environment variable.

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Version 26.1 | Last updated January 2026

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Product: File Content Extraction 26.1

Topic Title: Enable or Disable Legacy Out-of-Process Error Logging