TYPO3 extension "kool_base"

This extension does nothing on it's own. It only supplies some functionalities common to most kOOL extensions. These are among others:

A new class tx_koolbase that extends tslib_pibase. So kOOL extensions can extend this tx_koolbase class.
A backend main module txkoolbaseM1 that can hold other kOOL backend modules (e.g. used in kool_kgliste)
A method kOOLQuery to get data out of the kOOL database
Methods to get common values out of flexform and TS configuration
Methods to render list, single and table layouts

You will find more information about this extension in the TYPO3 extension repository on www.typo3.org.