Standard code is located in the bootstrap directory of the Black Sheep Research Library. There are a number of classes, providing generally helpful services. The zbuild process includes them in a component package, inside the admin/install directory. This complements the policy of having install.script.php (the install script) in an install directory within the component package. Joomla will eventually place it in administrator/com_example/install. The helpful classes will also go there. The manifest should ensure there is a folder within the admin section called install that contains an empty index.html file.