For some stupid reason, needing to have 
sitting on my flash drive to not have Windows Media Player (WMP) not try to sync with it annoys me. And any time I delete it (compulsively) this pop up when I connect the USB flash drive to my computer again.
Even worse, it keeps wanting to put its grubby fingers in my XV6800, which sync center already knows is Outlooks.
I have searched around, and have yet to find a way to completely disable WMP syncing with anything. So far the only thing that has actually worked, it using it with Vista Business, and that's only because it doesn't have WMP installed.