Someone contacted me with this message :

you should make a Shell Extension thingie...whatever they're called...where you can right click on a batch of photos and auto-rotate

with Windows 7's Extra-Large Icon View I can quickly see which ones need rotating and ctrl+click to select. then if there were a shell extension to just right-click>rotate that would make my life amazing.

i know nothing of this fancy stuff though, not sure if it's possible.

i guess there'd be the problem of knowing if it were rotation CC or CW that was needed.