PDM Add-in on SW2012 SP1

Hello

I don't have the PDM add-in active.

In the complements, it is non-existent. My installation is a 2012 premium.

I can extract the plans from the safe from solidworks explorer and I can archive with it. But it is impossible to load a PDM plan from solidworks.

I reinstalled the software and then tried to repair it and nothing helped.

If you have a solution to give me.

Thank you