SAP IS-Auto & SAP IS-Utilites in one system

Hi,

This is with reference to the thread link give below.

[Combining different IS solutions on one system;

Is it possible to activate SAP IS-Auto and SAP IS-Utilities in one System.

Also if possible please clarify whether SAP IS-Auto and SAP IS-Utilities are considered an enterprise extension or an enterprise add-on

With thanks & regards,

Vinodh