This is also my biggest complaint. Even trying to stay on the desktop and avoid the "Windows 8 Store App" environment is frustrating.
"Windows 8 - More clicks in every box!": I think they should make a mouse version of their Surface commercial but instead of attaching the keyboard with that satisfying click they should show users furiously clicking the mouse in frustration along with "scroll...scroll...scroll your boat gently down the stream..."
I love those devs too that forget to add mouse wheel support to their Windows 8 Store Apps. You know the victims of the Sinofsky-ism "Write for touch and get the mouse & keyboard for free".