Ah, the beauty of Parallels.
There is no way around right-clicking on a MacBook/MBP running under Boot Camp because it sees the mouse as one button and ctrl-click means nothing to Windows. With Mighty Mouse, Windows sees it as a standard two button mouse, so no problem, only disables centre-click, exposé and 360 scrolling, (merely horizontal and vertical).
Forget whether or not two fingered scrolling works or not, but doubt that too.