diff --git a/Code/GamePhysics/Implementation/PhysicsAPI_Impl.cpp b/Code/GamePhysics/Implementation/PhysicsAPI_Impl.cpp
index 9bb764fc..9072aa81 100644
--- a/Code/GamePhysics/Implementation/PhysicsAPI_Impl.cpp
+++ b/Code/GamePhysics/Implementation/PhysicsAPI_Impl.cpp
@@ -9,32 +9,32 @@ using namespace ::Utility::DynamicMemory;
 
 API_Impl instance;  
 
-::Oyster::Math::Float4x4 & MomentOfInertia::CreateSphereMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float radius)
+::Oyster::Math::Float4x4 & __stdcall MomentOfInertia::CreateSphereMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float radius)
 {
 	return ::Oyster::Physics3D::Formula::MomentOfInertia::Sphere(mass, radius);
 }
 
-::Oyster::Math::Float4x4 & MomentOfInertia::CreateHollowSphereMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float radius)
+::Oyster::Math::Float4x4 & __stdcall MomentOfInertia::CreateHollowSphereMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float radius)
 {
 	return ::Oyster::Physics3D::Formula::MomentOfInertia::HollowSphere(mass, radius);
 }
 
-::Oyster::Math::Float4x4 & MomentOfInertia::CreateCuboidMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float height, const ::Oyster::Math::Float width, const ::Oyster::Math::Float depth )
+::Oyster::Math::Float4x4 & __stdcall MomentOfInertia::CreateCuboidMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float height, const ::Oyster::Math::Float width, const ::Oyster::Math::Float depth )
 {
 	return ::Oyster::Physics3D::Formula::MomentOfInertia::Cuboid(mass, height, width, depth);
 }
 
-::Oyster::Math::Float4x4 & MomentOfInertia::CreateCylinderMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float height, const ::Oyster::Math::Float radius )
+::Oyster::Math::Float4x4 & __stdcall MomentOfInertia::CreateCylinderMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float height, const ::Oyster::Math::Float radius )
 {
 	return ::Oyster::Physics3D::Formula::MomentOfInertia::Cylinder(mass, height, radius);
 }
 
-::Oyster::Math::Float4x4 & MomentOfInertia::CreateRodMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float length )
+::Oyster::Math::Float4x4 & __stdcall MomentOfInertia::CreateRodMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float length )
 {
 	return ::Oyster::Physics3D::Formula::MomentOfInertia::RodCenter(mass, length);
 }
 
-API & Instance()
+API & __stdcall API::Instance()
 {
 	return instance;
 }
diff --git a/Code/GamePhysics/PhysicsAPI.h b/Code/GamePhysics/PhysicsAPI.h
index 78a13cde..e722ff0d 100644
--- a/Code/GamePhysics/PhysicsAPI.h
+++ b/Code/GamePhysics/PhysicsAPI.h
@@ -31,15 +31,15 @@ namespace Oyster
 		class DLL_USAGE MomentOfInertia
 		{
 		public:
-			static ::Oyster::Math::Float4x4 & CreateSphereMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float radius);
+			static ::Oyster::Math::Float4x4 & __stdcall CreateSphereMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float radius);
 				
-			static ::Oyster::Math::Float4x4 & CreateHollowSphereMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float radius);
+			static ::Oyster::Math::Float4x4 & __stdcall CreateHollowSphereMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float radius);
 
-			static ::Oyster::Math::Float4x4 & CreateCuboidMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float height, const ::Oyster::Math::Float width, const ::Oyster::Math::Float depth );
+			static ::Oyster::Math::Float4x4 & __stdcall CreateCuboidMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float height, const ::Oyster::Math::Float width, const ::Oyster::Math::Float depth );
 
-			static ::Oyster::Math::Float4x4 & CreateCylinderMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float height, const ::Oyster::Math::Float radius );
+			static ::Oyster::Math::Float4x4 & __stdcall CreateCylinderMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float height, const ::Oyster::Math::Float radius );
 	
-			static ::Oyster::Math::Float4x4 & CreateRodMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float length );
+			static ::Oyster::Math::Float4x4 & __stdcall CreateRodMatrix( const ::Oyster::Math::Float mass, const ::Oyster::Math::Float length );
 		};
 
 		class DLL_USAGE API
@@ -49,7 +49,7 @@ namespace Oyster
 			typedef void (*EventAction_Destruction)( unsigned int, ::Utility::DynamicMemory::UniquePointer<ICustomBody> );
 
 			/** Gets the Physics instance. */
-			static API & Instance();
+			static API & __stdcall Instance();
 
 			/********************************************************
 			 * Sets the time length of each physics update frame.