In order to create an MSI package for the installation of LABEL CONTROL (label) and LIVELINK EXPLORER ACTIVATOR (checkout) you must repackage the active X installation.
Create a "BEFORE" point and as an administrator access your livelink site trought a browser. Try to use the "CHECKOUT" and the "LABEL" fonctions for the drop-down list and install both active X from the server. Right after that, finish your repackaging with an "AFTER".
You can now manually install these two active X on your client machines without needs for admin rights.