User dependent install

[Deshojo]

Idea ist to create onely on CD for different usergroups with different rights.
The user will habe to type in a installation code an will onely see installation parts he is allowed to see.
I have an example code to implement a custom user dialog.
But how is it possible to show each user group a own view an let them onely install parts of the package?
If I only new how, I would show each user group a different page with different components.
Enebeling/disabeling components would be just as well.
It woult also be possible to divide the package in several packs, but i don't know how to execute a file due to a user input.
A simple switch case would do.