diff --git a/OptiScaler/nvapi/fakenvapi/main.cpp b/OptiScaler/nvapi/fakenvapi/main.cpp
index 0a60be7f..83e01192 100644
--- a/OptiScaler/nvapi/fakenvapi/main.cpp
+++ b/OptiScaler/nvapi/fakenvapi/main.cpp
@@ -5,7 +5,11 @@
 #include <dxgi.h>
 #include <d3d11.h>
 #include "../include/nvapi_interface.h"
+#if defined __MINGW64__ || defined __MINGW32__
 #include "../include/d3d12.h"
+#else
+#include <d3d12.h>
+#endif
 #include "../include/nvapi.h"
 #include "nvapi.h"
 
@@ -33,7 +37,7 @@ namespace nvd {
 
         static std::unordered_map<NvU32, void*> registry;
 
-        void* nvapi_QueryInterface(NvU32 id) {
+        __declspec(dllexport) void* __cdecl nvapi_QueryInterface(NvU32 id) {
             auto entry = registry.find(id);
             if (entry != registry.end())
                 return entry->second;
diff --git a/OptiScaler/nvapi/fakenvapi/nvapi.h b/OptiScaler/nvapi/fakenvapi/nvapi.h
index 8b2b65b0..dd5bffaf 100644
--- a/OptiScaler/nvapi/fakenvapi/nvapi.h
+++ b/OptiScaler/nvapi/fakenvapi/nvapi.h
@@ -4,7 +4,11 @@
 #include <format>
 
 #include <dxgi.h>
+#if defined __MINGW64__ || defined __MINGW32__
 #include "../include/d3d12.h"
+#else
+#include <d3d12.h>
+#endif
 #include <vector>
 
 #include "util.h"
diff --git a/OptiScaler/nvapi/fakenvapi/spoofInfo.h b/OptiScaler/nvapi/fakenvapi/spoofInfo.h
index e7ab9d1d..821b7d69 100644
--- a/OptiScaler/nvapi/fakenvapi/spoofInfo.h
+++ b/OptiScaler/nvapi/fakenvapi/spoofInfo.h
@@ -3,14 +3,14 @@
 
 namespace spoof {
     constexpr NvU32 driverVersion = 54629;
-    constexpr std::string buildBranch = "buildBranch";
+    constexpr auto buildBranch = "buildBranch";
     constexpr NvU32 isDCHDriver = 1;
     constexpr NvU32 isNVIDIAStudioPackage = 1;
     constexpr NvU32 isNVIDIARTXProductionBranchPackage = 1;
     constexpr NvU32 isNVIDIARTXNewFeatureBranchPackage = 1;
-    constexpr std::string buildBaseBranch = "buildBaseBranch";
+    constexpr auto buildBaseBranch = "buildBaseBranch";
 
-    const std::string fullGPUName = "NVIDIA GeForce RTX 4090";
+    constexpr auto fullGPUName = "NVIDIA GeForce RTX 4090";
     constexpr NV_GPU_ARCHITECTURE_ID arch = NV_GPU_ARCHITECTURE_AD100;
     constexpr NV_GPU_ARCH_IMPLEMENTATION_ID implementation = NV_GPU_ARCH_IMPLEMENTATION_AD102;
     constexpr NV_GPU_CHIP_REVISION revision = NV_GPU_CHIP_REV_UNKNOWN;