After plugging in a DAP or USB drive windows annoys me. Yet again it asks what I want it to do with all those types of media files! I found how to permanently stop the nagging at howtogeek's "Disable Autoplay of Audio CDs and USB Drives" http://www.howtogeek.com/howto/windows/disable-autoplay-of-audio-cds-and-usb-drives/#comment-69352
Thanks for the post! I hate autorun with a passion. This is the first method that is simple enough for me to try. I don't like editing the registry unless the instructions are as explicit as these.