To make them work together, the d3d8.dll from the Widescreen Fix to dinput8.dll so it doesn't overwrite the dgVoodoo file.
If you are experiencing black shadow glitches or "shades" across the map in the classic version of Mafia II : Download MAFIA SHADOW PROBLEM FIX WITHOUT ANALYZER
: In the same Compatibility tab, check Run this program as an administrator . To make them work together, the d3d8
The most common modern solution involves combining the with dgVoodoo . : Sometimes the internal PhysX drivers are outdated
: Sometimes the internal PhysX drivers are outdated. You can try installing the NVIDIA PhysX System Software even if you have an AMD card.
: Get the latest version from the dgVoodoo official site. Install dgVoodoo files : Open the MS/x86 folder inside the downloaded dgVoodoo zip. Copy D3D8.dll to your main Mafia installation folder.
In the d3d8.ini file from the Widescreen Fix, set D3D8to9 = 0 to disable its internal shadow fix, which often fails. For Mafia II (Classic)