When I plug a USB thumb drive into my Win7 PC, it no longer auto-launches the window giving me options like "Import Photos" or "browse". The drive is recognized but nothing autolaunches.
Similarly, CD's don't autoplay either.
I verified that Win7 is set to autoplay, per method 1 and 2 of: http://www.sevenforums.com/tutorials/27544-autoplay-enable-disable-autorun.html
FYI, there is a similar question (but for Windows XP) here on SU.