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Using the automatic configuration check for extensions
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

You can use oelib to let your extension warn users about configuration
annoyances in your extensions. This already is used in the following
extensions:

- One-time FE account

- Realty Manager

- Seminar Manager

At `http://t3dd08.typo3.org/fileadmin/slides/Automatic\_Configuration\
_Checking.pdf <http://t3dd08.typo3.org/fileadmin/slides/Automatic_Conf
iguration_Checking.pdf>`_ , you can find some slides take explain how
to use the automatic configuration checking. These are the slides from
a presentation that took place at the `TYPO3 Developer Days 2008
<http://t3dd08.typo3.org/>`_ .