Automatic photo rotation?

How can I make Windows Photo Gallery automatically rotate photos? My camera
encodes the intended rotation (ie. landscape or portrait) in the JPG file and
Picasa software automatically presents the photo with the correct rotation.
How can I get Windows to do this?

I really want to use Microsoft's Photo Gallery software, but without
automatic rotation, it's too much trouble to use since I take a lot of
pictures!

Thanks,
Mark