This is not a madexcept problem, but I have received no answers in the CodeGear newsgroups, and I know that here are a lot of people using the map file.
On one computer with Delphi 2007 (incl. december update) and Vista x64it won't generate a map file. It seems that msbuild simply does not add the -GD parameter when it calls dcc32.
Map file generation is turned on in the project options, and this works fine on a different computer (running Vista x86 and Delphi 2007 without the december update). The .dproj file contains <DCC_MapFile>3</DCC_MapFile>.
Has anybody else seen this behaviour, and know how to fix it?