Load PDMWE add-in in 2007

Hi.

I'm having a problem on some of my clients.

For some reason it doesn't load the PDMWE add-in, and when i try toload the add-in manually it shows an error. "Could not load theadd-in" <- or something like that.

But when I import my old Conisio 3.0 add-in into my reg database itseems to work. Anyone have an idea on how to get the right add-into work?

Does anyone know if I'm missing some functions?

SW 2007
PDMWE 2007 SP4

Thanks in advanceSolidworksAdministration