I've seen a few referrals coming from MSN for terms that are not even close to anything I have on page and they are coming from micr~soft themselves not the bot, but from the 131~107~0~96

Does anyone know what kind of test this could possibly be? The referral goes straight to the index from what I have seen

Sample:
search~live~com/result~aspx?q=audi&mrt=en-us&FORM=LVSP

When I check that URL to see if I show for anything, the results are always the same....there is nothing there, although AUDI has well over 32 mil results