Umbra Software Ltd. DLL ของ บริษัท

umbra.dll	Umbra Runtime Library (DLL)	umbra32.dll	Umbra Occlusion Booster Runtime Library (DLL)
umbraob32.dll	Umbra Occlusion Booster Runtime Library (DLL)

umbra.dll	Umbra Runtime Library (DLL)
umbra32.dll	Umbra Occlusion Booster Runtime Library (DLL)
umbraob32.dll	Umbra Occlusion Booster Runtime Library (DLL)