Someone sent me a debug version of a Windows dll and a map file. I'm not a Windows programmer, and I'm not sure how to use the map fiile.
Look on the microsoft site for crashfinder (it's from a MS Journal article). It reads the mapfile(s), you can enter an address and it returns you the matching function. (And if you fail to find it I can send it to you. That should be legal as the source code is freely available.)
bye Fabi