Splat
If you go into My Computer and right click on your CD drive the go to Properties there should be an Autoplay tab with various selections in a drop down box check them all and set them to Prompt me to choose then the box should reappear next time you insert a disk.
Probably just changes the registry entry that Cesco mentions but is a hell of a lot safer to do it this way.
FSD
[Edit/Stupid mode] Really must read the question properly but between me and ORAC I think you will get the message
[Edit/Stupid mode off]