Vista - Live messenger and ISP thorttling?

I'm beginning to worry about the bandwidth demands of Live Messenger of late.
It appears that some ISPs are starting to thorttle ANY type of p2p
connection, including Live messenger. Does anyone working on development
perhaps know if there is a workaround, pending fix, or add in to messenger
that could do things like adjust the threshold of bandwidth used to keep the
video chat function from being squeezed by the ISP, or some way to at least
adjust the audio quality manually so the dropouts will be minimal if this
happens? either that or if the bandwidth is being restricted, back down on
the video framerate, THEN the audio quality? this shouldn't be an issue, but
has been seen as a problem more common of late. A simple 'power tool' type
of add in should be available? Or is there an SDK that can be downloaded
and I could write one? Thanks...