I've begun cross referencing the windows dlls in a 'map' format as Dan Kegel suggested.  I'm not finished yet because it seems when I sort alphabetically I am sorting the entire path.  Sample output is here:  http://home.ptd.net/~compsol/winxp_sample_map.html  Be aware though this HTML is around 900K.  If anyone has comments or suggestions on how to improve it or the next logical step please let me know.