Hi Tina, thanks for your reply, I'm still waiting for the coin to drop. But I now have an example I can work with :-)
It seemed a bit much for just changing the minimize button. :-S
But again thanks a lot for your help, I can now present a prototype of the intended interface.
All the best to you,
Ronald
edit:
I noticed that the arrow in a minimized OutlookBar was pointing in the same direction. So I rotated the button rather than the arrow. I also set the HorizontalAlignment to "Left".