Additional Content install?

When I installed Halion 6 (upgrade from Halion 5) I saw a file named “Additional Content” and in that “VST Sound” with 126 objects in it.
I checked the installed VST Sound file on my HD and it only got 104 objects.
Did anything go wrong in the installation or am I supposed to install the one with 126 objects some how?
I have 3631 sounds in Halion 6, but I have read that some have 4904 and even more.
Anybody who can answer what the Additional Content is about? Thanks!