Microsoft Powerpoint 2007 Addin

Hi I have successfully created a ppam addin that does work as desired. I need to deploy this to around 2000 users.

What I need to know how to script / automatically load the addin. I have manually done this on the test pc (Powerpoint Options – Addins – Powerpoint Addins – and browsing for the addin) But obviously I need to automate this as it is not economic to manually do this on all pcs.