[Zope] DiskBased Product question

Hi I'm looking for documentation or simple examples on how to create a disk based product that when I install it, it also adds some third party products. for example, If I select my product from the "Add" list, it'll create a folder, insert my code into it, but also insert mailhost, database connector, exuserfolder etc... is it even possible? one if the reasons I want to create it this way, and not just instruct the user to add these products and only then add mine, is because I want to have a few levels of folders with "acl_users" inside them instead of defining all the users in one folder and start playing with roles and permissions... thanx -- Haim