I know its possible to send an outlook client a message, but is it possible to send an outlook client another type of object, like a task, except a custom object I create.
The solution would also need to be cross domain compatible, so effectively clients can send to other regions in the world. So setting up a lan port service won't work.
Let me expand a bit on the usage:
Admin sends out 3 emails, to 3 differant users, all running outlook, and any user can take an action on this email.
As soon as 1 user takes an action, I need to update the email stored in the inbox of the other 2 users. I could send a message, and catch it in an event, then convert it to some kind of action history for the original email. But I would rather have it not visible to the user, even if its for a split second while it arrives in the users inbox.
See the point?