Luc,
>Can a mmBusinessProcess can be registred throw windows/web forms ?
If you use the business process object's ParticipatingObjectCollection, then yes. In your business process object, just use the Add() method of the collection to add a reference to each of your participating business objects. Then you can call the Windows Form method RegisterEventObj() passing a reference to your business process object (we used to call them "event" several years ago).
Best Regards,
Kevin McNeish
Eight-Time .NET MVP
VFP and iOS Author, Speaker & Trainer
Oak Leaf Enterprises, Inc.
Chief Architect, MM Framework
http://www.oakleafsd.com