Each includelet package depends on an application package, typically a standalone package such as forums. In some cases, an includelet package will provide its own application, for example the content-includelet package, which provides simple content management for an individual includelet but which is not meant to be used standalone outside of the Layout Manager environment.
The standard naming convention for includelet packages is to apply a "-includelets" suffix to a base application name. Thus forums-includelets is based in the forums application package, file-storage-includelets the file-storage package, etc.
Correctly implemented includelet packages will include a dependency on their base application package, and will be marked as a service, not application. To install an includelets package and its base application package, go to the acs-admin install software page, select services, and select the includelets you'd like to install.
After completion, restart AOLserver. These includelets and applications are now ready for use by the Layout Manager and Layout Managed Subsite packages.