faultrep.dll is part of your operating system. It is not an Demigod dll. Missing it means there is something wrong with your windows install, or that you do not have the latest service pack/updates.
If you do have the latest service packs and updates, or installing them did not fix the problem, execute "sfc /scannow" from the command prompt or the run dialog. This will try to repair any corrupted or missing system files.
