Is it possible to add a custom workflow to a form, using the FormSavingNotification handler? We know about the IApplyDefaultWorkflowsBehavior route for adding workflows to ALL forms, but I need to detect a certain field before adding. I can't see anything in the handler that allows me to do this. Any ideas?

I'd probably do it the other way around. Add the workflow and then quickly exit out of the code if the field isn't there?

yeah, its looking like that is the only way