Build for a Windows 8.1 minimum (#564)

microsoft · Dec 11, 2024 · 5864794 · 5864794
1 parent 42357da
commit 5864794
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Showing 30 changed files with 152 additions and 319 deletions.
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
@@ -60,6 +60,12 @@ jobs:
           - os: windows-2022
             build_type: arm64ec-Release
             arch: amd64_arm64
+          - os: windows-2022
+            build_type: x64-Debug-Win8
+            arch: amd64
+          - os: windows-2022
+            build_type: x64-Release-Win8
+            arch: amd64
           - os: windows-2022
             build_type: x64-Debug-Clang
             arch: amd64

diff --git a/Auxiliary/DirectXTexEXR.cpp b/Auxiliary/DirectXTexEXR.cpp
@@ -240,19 +240,10 @@ HRESULT DirectX::GetMetadataFromEXRFile(const wchar_t* szFile, TexMetadata& meta
         }
     }
 
-#if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
     ScopedHandle hFile(safe_handle(CreateFile2(
         szFile,
         GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING,
         nullptr)));
-#else
-    ScopedHandle hFile(safe_handle(CreateFileW(
-        szFile,
-        GENERIC_READ, FILE_SHARE_READ,
-        nullptr,
-        OPEN_EXISTING, FILE_FLAG_SEQUENTIAL_SCAN,
-        nullptr)));
-#endif
     if (!hFile)
     {
         return HRESULT_FROM_WIN32(GetLastError());
@@ -358,19 +349,10 @@ HRESULT DirectX::LoadFromEXRFile(const wchar_t* szFile, TexMetadata* metadata, S
         }
     }
 
-#if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
     ScopedHandle hFile(safe_handle(CreateFile2(
         szFile,
         GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING,
         nullptr)));
-#else
-    ScopedHandle hFile(safe_handle(CreateFileW(
-        szFile,
-        GENERIC_READ, FILE_SHARE_READ,
-        nullptr,
-        OPEN_EXISTING, FILE_FLAG_SEQUENTIAL_SCAN,
-        nullptr)));
-#endif
     if (!hFile)
     {
         return HRESULT_FROM_WIN32(GetLastError());
@@ -508,19 +490,12 @@ HRESULT DirectX::SaveToEXRFile(const Image& image, const wchar_t* szFile)
     }
 
     // Create file and write header
-#if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
-    ScopedHandle hFile(safe_handle(CreateFile2(
-        szFile,
-        GENERIC_WRITE, 0, CREATE_ALWAYS,
-        nullptr)));
-#else
     ScopedHandle hFile(safe_handle(CreateFileW(
         szFile,
         GENERIC_WRITE, 0,
         nullptr,
         CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL,
         nullptr)));
-#endif
     if (!hFile)
     {
         return HRESULT_FROM_WIN32(GetLastError());

diff --git a/Auxiliary/DirectXTexXboxDDS.cpp b/Auxiliary/DirectXTexXboxDDS.cpp
@@ -439,12 +439,10 @@ HRESULT Xbox::GetMetadataFromDDSFileEx(
 
     isXbox = false;
 
-#if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
-    ScopedHandle hFile(safe_handle(CreateFile2(szFile, GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, nullptr)));
-#else
-    ScopedHandle hFile(safe_handle(CreateFileW(szFile, GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING,
-        FILE_FLAG_SEQUENTIAL_SCAN, nullptr)));
-#endif
+    ScopedHandle hFile(safe_handle(CreateFile2(
+        szFile,
+        GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING,
+        nullptr)));
     if (!hFile)
     {
         return HRESULT_FROM_WIN32(GetLastError());
@@ -591,13 +589,10 @@ HRESULT Xbox::LoadFromDDSFileEx(
 
     xbox.Release();
 
-#if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
-    ScopedHandle hFile(safe_handle(CreateFile2(szFile, GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, nullptr)));
-#else
-    ScopedHandle hFile(safe_handle(CreateFileW(szFile, GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING,
-        FILE_FLAG_SEQUENTIAL_SCAN, nullptr)));
-#endif
-
+    ScopedHandle hFile(safe_handle(CreateFile2(
+        szFile,
+        GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING,
+        nullptr)));
     if (!hFile)
     {
         return HRESULT_FROM_WIN32(GetLastError());
@@ -742,13 +737,10 @@ HRESULT Xbox::SaveToDDSFile(const XboxImage& xbox, const wchar_t* szFile)
         return hr;
 
     // Create file and write header
-#if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
-    ScopedHandle hFile(safe_handle(CreateFile2(szFile,
-        GENERIC_WRITE, 0, CREATE_ALWAYS, nullptr)));
-#else
-    ScopedHandle hFile(safe_handle(CreateFileW(szFile,
-        GENERIC_WRITE, 0, nullptr, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, nullptr)));
-#endif
+    ScopedHandle hFile(safe_handle(CreateFile2(
+        szFile,
+        GENERIC_WRITE, 0, CREATE_ALWAYS,
+        nullptr)));
     if (!hFile)
     {
         return HRESULT_FROM_WIN32(GetLastError());

diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -632,9 +632,8 @@ if(WIN32)
     elseif(${DIRECTX_ARCH} MATCHES "^arm")
         set(WINVER 0x0602)
     else()
-        message(STATUS "Building with Windows 7 compatibility")
-        set(WINVER 0x0601)
-        target_compile_definitions(${PROJECT_NAME} PRIVATE _WIN7_PLATFORM_UPDATE)
+        message(STATUS "Building with Windows 8.1 compatibility")
+        set(WINVER 0x0603)
     endif()
 
     foreach(t IN LISTS TOOL_EXES ITEMS ${PROJECT_NAME})

diff --git a/CMakePresets.json b/CMakePresets.json
@@ -118,7 +118,7 @@
     },
 
     {
-      "name": "Win7",
+      "name": "Win8",
       "cacheVariables": {
         "BUILD_DX12": false
       },
@@ -294,10 +294,10 @@
     { "name": "arm64-Debug-UWP"  , "description": "MSVC for ARM64 (Debug) for UWP", "inherits": [ "base", "ARM64", "Debug", "MSVC", "UWP" ] },
     { "name": "arm64-Release-UWP", "description": "MSVC for ARM64 (Release) for UWP", "inherits": [ "base", "ARM64", "Release", "MSVC", "UWP" ] },
 
-    { "name": "x64-Debug-Win7"    , "description": "MSVC for x64 (Debug) for Windows 7", "inherits": [ "base", "x64", "Debug", "MSVC", "Win7" ] },
-    { "name": "x64-Release-Win7"  , "description": "MSVC for x64 (Release) for Windows 7", "inherits": [ "base", "x64", "Release", "MSVC", "Win7" ] },
-    { "name": "x86-Debug-Win7"    , "description": "MSVC for x86 (Debug) for Windows 7", "inherits": [ "base", "x86", "Debug", "MSVC", "Win7" ] },
-    { "name": "x86-Release-Win7"  , "description": "MSVC for x86 (Release) for Windows 7", "inherits": [ "base", "x86", "Release", "MSVC", "Win7" ] },
+    { "name": "x64-Debug-Win8"    , "description": "MSVC for x64 (Debug) for Windows 8.1", "inherits": [ "base", "x64", "Debug", "MSVC", "Win8" ] },
+    { "name": "x64-Release-Win8"  , "description": "MSVC for x64 (Release) for Windows 8.1", "inherits": [ "base", "x64", "Release", "MSVC", "Win8" ] },
+    { "name": "x86-Debug-Win8"    , "description": "MSVC for x86 (Debug) for Windows 8.1", "inherits": [ "base", "x86", "Debug", "MSVC", "Win8" ] },
+    { "name": "x86-Release-Win8"  , "description": "MSVC for x86 (Release) for Windows 8.1", "inherits": [ "base", "x86", "Release", "MSVC", "Win8" ] },
 
     { "name": "x64-Debug-Scarlett"    , "description": "MSVC for x64 (Debug) for Xbox Series X|S", "inherits": [ "base", "x64", "Debug", "MSVC", "Scarlett" ] },
     { "name": "x64-Release-Scarlett"  , "description": "MSVC for x64 (Release) for Xbox Series X|S", "inherits": [ "base", "x64", "Release", "MSVC", "Scarlett" ] },
@@ -337,10 +337,10 @@
     { "name": "arm64-Debug-UWP-Clang"  , "description": "Clang/LLVM for AArch64 (Debug) for UWP", "inherits": [ "base", "ARM64", "Debug", "Clang", "Clang-AArch64", "UWP" ] },
     { "name": "arm64-Release-UWP-Clang", "description": "Clang/LLVM for AArch64 (Release) for UWP", "inherits": [ "base", "ARM64", "Release", "Clang", "Clang-AArch64", "UWP" ] },
 
-    { "name": "x64-Debug-Win7-Clang"  , "description": "Clang/LLVM for x64 (Debug) for Windows 7", "inherits": [ "base", "x64", "Debug", "Clang", "Win7" ] },
-    { "name": "x64-Release-Win7-Clang", "description": "Clang/LLVM for x64 (Release) for Windows 7", "inherits": [ "base", "x64", "Release", "Clang", "Win7" ] },
-    { "name": "x86-Debug-Win7-Clang"  , "description": "Clang/LLVM for x86 (Debug) for Windows 7", "inherits": [ "base", "x86", "Debug", "Clang", "Clang-X86", "Win7" ] },
-    { "name": "x86-Release-Win7-Clang", "description": "Clang/LLVM for x86 (Release) for Windows 7", "inherits": [ "base", "x86", "Release", "Clang", "Clang-X86", "Win7" ] },
+    { "name": "x64-Debug-Win8-Clang"  , "description": "Clang/LLVM for x64 (Debug) for Windows 8.1", "inherits": [ "base", "x64", "Debug", "Clang", "Win8" ] },
+    { "name": "x64-Release-Win8-Clang", "description": "Clang/LLVM for x64 (Release) for Windows 8.1", "inherits": [ "base", "x64", "Release", "Clang", "Win8" ] },
+    { "name": "x86-Debug-Win8-Clang"  , "description": "Clang/LLVM for x86 (Debug) for Windows 8.1", "inherits": [ "base", "x86", "Debug", "Clang", "Clang-X86", "Win8" ] },
+    { "name": "x86-Release-Win8-Clang", "description": "Clang/LLVM for x86 (Release) for Windows 8.1", "inherits": [ "base", "x86", "Release", "Clang", "Clang-X86", "Win8" ] },
 
     { "name": "x64-Debug-Clang-VCPKG"    , "description": "Clang/LLVM for x64 (Debug) using VCPKG/OpenEXR", "inherits": [ "base", "x64", "Debug", "Clang", "VCPKG" ] },
     { "name": "x64-Release-Clang-VCPKG"  , "description": "Clang/LLVM for x64 (Release) using VCPKG/OpenEXR", "inherits": [ "base", "x64", "Release", "Clang", "VCPKG" ] },

diff --git a/DDSTextureLoader/DDSTextureLoader11.cpp b/DDSTextureLoader/DDSTextureLoader11.cpp
@@ -239,20 +239,10 @@ namespace
         *bitSize = 0;
 
         // open the file
-    #if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
         ScopedHandle hFile(safe_handle(CreateFile2(
             fileName,
             GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING,
             nullptr)));
-    #else
-        ScopedHandle hFile(safe_handle(CreateFileW(
-            fileName,
-            GENERIC_READ, FILE_SHARE_READ,
-            nullptr,
-            OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL,
-            nullptr)));
-    #endif
-
         if (!hFile)
         {
             return HRESULT_FROM_WIN32(GetLastError());

diff --git a/DDSTextureLoader/DDSTextureLoader9.cpp b/DDSTextureLoader/DDSTextureLoader9.cpp
@@ -204,22 +204,10 @@ namespace
         *bitSize = 0;
 
         // open the file
-    #if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
-        ScopedHandle hFile(safe_handle(CreateFile2(fileName,
-            GENERIC_READ,
-            FILE_SHARE_READ,
-            OPEN_EXISTING,
+        ScopedHandle hFile(safe_handle(CreateFile2(
+            fileName,
+            GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING,
             nullptr)));
-    #else
-        ScopedHandle hFile(safe_handle(CreateFileW(fileName,
-            GENERIC_READ,
-            FILE_SHARE_READ,
-            nullptr,
-            OPEN_EXISTING,
-            FILE_ATTRIBUTE_NORMAL,
-            nullptr)));
-    #endif
-
         if (!hFile)
         {
             return HRESULT_FROM_WIN32(GetLastError());

diff --git a/DDSView/DDSView_Desktop_2019.vcxproj b/DDSView/DDSView_Desktop_2019.vcxproj
@@ -135,7 +135,7 @@
       <FloatingPointModel>Fast</FloatingPointModel>
       <EnableEnhancedInstructionSet>StreamingSIMDExtensions2</EnableEnhancedInstructionSet>
       <AdditionalIncludeDirectories>..\DirectXTex;$(ProjectDir)Shaders;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;_DEBUG;DEBUG;PROFILE;_WINDOWS;_WIN32_WINNT=0x0601;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;_DEBUG;DEBUG;PROFILE;_WINDOWS;_WIN32_WINNT=0x0603;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ConformanceMode>true</ConformanceMode>
       <SDLCheck>true</SDLCheck>
       <AdditionalOptions>/Zc:__cplusplus /ZH:SHA_256 %(AdditionalOptions)</AdditionalOptions>
@@ -159,7 +159,7 @@
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
       <FloatingPointModel>Fast</FloatingPointModel>
       <AdditionalIncludeDirectories>..\DirectXTex;$(ProjectDir)Shaders;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;_DEBUG;DEBUG;PROFILE;_WINDOWS;_WIN32_WINNT=0x0601;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;_DEBUG;DEBUG;PROFILE;_WINDOWS;_WIN32_WINNT=0x0603;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ConformanceMode>true</ConformanceMode>
       <SDLCheck>true</SDLCheck>
       <AdditionalOptions>/Zc:__cplusplus /ZH:SHA_256 %(AdditionalOptions)</AdditionalOptions>
@@ -182,7 +182,7 @@
       <FloatingPointModel>Fast</FloatingPointModel>
       <EnableEnhancedInstructionSet>StreamingSIMDExtensions2</EnableEnhancedInstructionSet>
       <AdditionalIncludeDirectories>..\DirectXTex;$(ProjectDir)Shaders;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_WIN32_WINNT=0x0601;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_WIN32_WINNT=0x0603;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ControlFlowGuard>Guard</ControlFlowGuard>
       <ConformanceMode>true</ConformanceMode>
       <SDLCheck>true</SDLCheck>
@@ -208,7 +208,7 @@
       <Optimization>MaxSpeed</Optimization>
       <FloatingPointModel>Fast</FloatingPointModel>
       <AdditionalIncludeDirectories>..\DirectXTex;$(ProjectDir)Shaders;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_WIN32_WINNT=0x0601;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_WIN32_WINNT=0x0603;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ControlFlowGuard>Guard</ControlFlowGuard>
       <ConformanceMode>true</ConformanceMode>
       <SDLCheck>true</SDLCheck>
@@ -234,7 +234,7 @@
       <FloatingPointModel>Fast</FloatingPointModel>
       <EnableEnhancedInstructionSet>StreamingSIMDExtensions2</EnableEnhancedInstructionSet>
       <AdditionalIncludeDirectories>..\DirectXTex;$(ProjectDir)Shaders;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;NDEBUG;PROFILE;_WINDOWS;_WIN32_WINNT=0x0601;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;PROFILE;_WINDOWS;_WIN32_WINNT=0x0603;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ControlFlowGuard>Guard</ControlFlowGuard>
       <ConformanceMode>true</ConformanceMode>
       <SDLCheck>true</SDLCheck>
@@ -260,7 +260,7 @@
       <Optimization>MaxSpeed</Optimization>
       <FloatingPointModel>Fast</FloatingPointModel>
       <AdditionalIncludeDirectories>..\DirectXTex;$(ProjectDir)Shaders;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;NDEBUG;PROFILE;_WINDOWS;_WIN32_WINNT=0x0601;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;PROFILE;_WINDOWS;_WIN32_WINNT=0x0603;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ControlFlowGuard>Guard</ControlFlowGuard>
       <ConformanceMode>true</ConformanceMode>
       <SDLCheck>true</SDLCheck>

diff --git a/DDSView/DDSView_Desktop_2022.vcxproj b/DDSView/DDSView_Desktop_2022.vcxproj
@@ -135,7 +135,7 @@
       <FloatingPointModel>Fast</FloatingPointModel>
       <EnableEnhancedInstructionSet>StreamingSIMDExtensions2</EnableEnhancedInstructionSet>
       <AdditionalIncludeDirectories>..\DirectXTex;$(ProjectDir)Shaders;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;_DEBUG;DEBUG;PROFILE;_WINDOWS;_WIN32_WINNT=0x0601;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;_DEBUG;DEBUG;PROFILE;_WINDOWS;_WIN32_WINNT=0x0603;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ConformanceMode>true</ConformanceMode>
       <SDLCheck>true</SDLCheck>
       <AdditionalOptions>/Zc:__cplusplus %(AdditionalOptions)</AdditionalOptions>
@@ -159,7 +159,7 @@
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
       <FloatingPointModel>Fast</FloatingPointModel>
       <AdditionalIncludeDirectories>..\DirectXTex;$(ProjectDir)Shaders;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;_DEBUG;DEBUG;PROFILE;_WINDOWS;_WIN32_WINNT=0x0601;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;_DEBUG;DEBUG;PROFILE;_WINDOWS;_WIN32_WINNT=0x0603;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ConformanceMode>true</ConformanceMode>
       <SDLCheck>true</SDLCheck>
       <AdditionalOptions>/Zc:__cplusplus %(AdditionalOptions)</AdditionalOptions>
@@ -182,7 +182,7 @@
       <FloatingPointModel>Fast</FloatingPointModel>
       <EnableEnhancedInstructionSet>StreamingSIMDExtensions2</EnableEnhancedInstructionSet>
       <AdditionalIncludeDirectories>..\DirectXTex;$(ProjectDir)Shaders;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_WIN32_WINNT=0x0601;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_WIN32_WINNT=0x0603;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ControlFlowGuard>Guard</ControlFlowGuard>
       <ConformanceMode>true</ConformanceMode>
       <SDLCheck>true</SDLCheck>
@@ -208,7 +208,7 @@
       <Optimization>MaxSpeed</Optimization>
       <FloatingPointModel>Fast</FloatingPointModel>
       <AdditionalIncludeDirectories>..\DirectXTex;$(ProjectDir)Shaders;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_WIN32_WINNT=0x0601;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_WIN32_WINNT=0x0603;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ControlFlowGuard>Guard</ControlFlowGuard>
       <ConformanceMode>true</ConformanceMode>
       <SDLCheck>true</SDLCheck>
@@ -234,7 +234,7 @@
       <FloatingPointModel>Fast</FloatingPointModel>
       <EnableEnhancedInstructionSet>StreamingSIMDExtensions2</EnableEnhancedInstructionSet>
       <AdditionalIncludeDirectories>..\DirectXTex;$(ProjectDir)Shaders;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;NDEBUG;PROFILE;_WINDOWS;_WIN32_WINNT=0x0601;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;PROFILE;_WINDOWS;_WIN32_WINNT=0x0603;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ControlFlowGuard>Guard</ControlFlowGuard>
       <ConformanceMode>true</ConformanceMode>
       <SDLCheck>true</SDLCheck>
@@ -260,7 +260,7 @@
       <Optimization>MaxSpeed</Optimization>
       <FloatingPointModel>Fast</FloatingPointModel>
       <AdditionalIncludeDirectories>..\DirectXTex;$(ProjectDir)Shaders;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;NDEBUG;PROFILE;_WINDOWS;_WIN32_WINNT=0x0601;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;PROFILE;_WINDOWS;_WIN32_WINNT=0x0603;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ControlFlowGuard>Guard</ControlFlowGuard>
       <ConformanceMode>true</ConformanceMode>
       <SDLCheck>true</SDLCheck>

diff --git a/DirectXTex/DirectXTexDDS.cpp b/DirectXTex/DirectXTexDDS.cpp
@@ -1878,12 +1878,10 @@ HRESULT DirectX::GetMetadataFromDDSFileEx(
         return E_INVALIDARG;
 
 #ifdef _WIN32
-#if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
-    ScopedHandle hFile(safe_handle(CreateFile2(szFile, GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, nullptr)));
-#else
-    ScopedHandle hFile(safe_handle(CreateFileW(szFile, GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING,
-        FILE_FLAG_SEQUENTIAL_SCAN, nullptr)));
-#endif
+    ScopedHandle hFile(safe_handle(CreateFile2(
+        szFile,
+        GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING,
+        nullptr)));
     if (!hFile)
     {
         return HRESULT_FROM_WIN32(GetLastError());
@@ -2064,12 +2062,10 @@ HRESULT DirectX::LoadFromDDSFileEx(
     image.Release();
 
 #ifdef _WIN32
-#if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
-    ScopedHandle hFile(safe_handle(CreateFile2(szFile, GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, nullptr)));
-#else
-    ScopedHandle hFile(safe_handle(CreateFileW(szFile, GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING,
-        FILE_FLAG_SEQUENTIAL_SCAN, nullptr)));
-#endif
+    ScopedHandle hFile(safe_handle(CreateFile2(
+        szFile,
+        GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING,
+        nullptr)));
     if (!hFile)
     {
         return HRESULT_FROM_WIN32(GetLastError());
@@ -2548,13 +2544,9 @@ HRESULT DirectX::SaveToDDSFile(
 
     // Create file and write header
 #ifdef _WIN32
-#if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
-    ScopedHandle hFile(safe_handle(CreateFile2(szFile,
+    ScopedHandle hFile(safe_handle(CreateFile2(
+        szFile,
         GENERIC_WRITE | DELETE, 0, CREATE_ALWAYS, nullptr)));
-#else
-    ScopedHandle hFile(safe_handle(CreateFileW(szFile,
-        GENERIC_WRITE | DELETE, 0, nullptr, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, nullptr)));
-#endif
     if (!hFile)
     {
         return HRESULT_FROM_WIN32(GetLastError());