64-bit Package of DLLs required to run an OpenTibia server on Windows.
If you got a 64-bit distribution, you need this DLL pack.
The DLL files were compiled with Microsoft Visual Studio, which means that you might need the C++ Redistributable Packages to use them.
Download: Microsoft Visual C++ 2010 Redistributable Package (x64) - Microsoft Download Center - Download Details
64-bit Open-Tibia DLL Pack 1.0
64-bit Open-Tibia DLL Pack required to run an Open-Tibia Server