diff --git a/Attributes.h b/Attributes.h
index 379a186..9fe9571 100644
--- a/Attributes.h
+++ b/Attributes.h
@@ -312,7 +312,8 @@ interface IAttributeSource
         //{
         //    return HRESULT_FROM_WIN32(ERROR_UNMAPPED_SUBSTITUTION_STRING);
         //}
-        values.reset(byteValues.reinterpret_as<T>());
+        auto a = byteValues.reinterpret_as<T>();
+        values.reset(a);
         return S_OK;
     }
 
@@ -329,7 +330,8 @@ interface IAttributeSource
 
         if (SUCCEEDED(GetValueData(id, OUT actualType, OUT byteValues)))
         {
-            values.reset(byteValues.reinterpret_as<T>());
+            auto a = byteValues.reinterpret_as<T>();
+            values.reset(a);
         }
         // // todo::: restore once you figure out enums! || !Attribute::AreCompatibleTypes(desiredType, actualType))
         //if (!Attribute::AreCompatibleTypes(desiredType, actualType))
diff --git a/Attributes.ixx b/Attributes.ixx
index fba624d..4bd6205 100644
--- a/Attributes.ixx
+++ b/Attributes.ixx
@@ -64,7 +64,7 @@ char16_t const* Attribute::GetPredefinedValue(uint32_t valueIndex, GetPredefined
         }
         else
         {
-            auto& newBuffer = std::to_wstring(predefinedValue.integerValue);
+            auto newBuffer = std::to_wstring(predefinedValue.integerValue);
             auto& recastBuffer = reinterpret_cast<std::u16string&>(newBuffer);
             buffer = recastBuffer;
         }
@@ -149,7 +149,7 @@ HRESULT Attribute::ParseString(
 {
     HRESULT hr = HRESULT_FROM_WIN32(ERROR_UNMAPPED_SUBSTITUTION_STRING);
 
-    if (stringValue == '\0')
+    if (stringValue == nullptr)
         return hr;
 
     static_assert(Attribute::TypeTotal == 13, "Update this switch statement.");
@@ -253,7 +253,7 @@ HRESULT Attribute::MapValueToName(_Out_ uint32_t enumValue, _Out_ std::u16string
 
     // Otherwise look for a numeric value, confirming that numeric value is
     // actually in the enumeration set.
-    auto& newString = std::to_wstring(enumValue);
+    auto newString = std::to_wstring(enumValue);
     auto& recastString = reinterpret_cast<std::u16string&>(newString);
     std::swap(stringValue, recastString);
 
diff --git a/Common.FastVector.h b/Common.FastVector.h
index 7877e61..b345a34 100644
--- a/Common.FastVector.h
+++ b/Common.FastVector.h
@@ -6,7 +6,8 @@
 #pragma warning(push)
 #pragma warning(disable:4127) // Conditional expression is constant. VS can't tell that certain compound conditionals of template parameters aren't always constant when the tempalate parameter is true.
 
-#if defined(_ITERATOR_DEBUG_LEVEL) && _ITERATOR_DEBUG_LEVEL > 0
+// Disable for Visual Studio 2019
+#if 0 // defined(_ITERATOR_DEBUG_LEVEL) && _ITERATOR_DEBUG_LEVEL > 0
 // For std::uninitialized_copy and std::uninitialized_move.
 #define FASTVECTOR_MAKE_UNCHECKED stdext::make_unchecked_array_iterator
 #else
diff --git a/DrawableObject.ixx b/DrawableObject.ixx
index 4993b75..d21dd2b 100644
--- a/DrawableObject.ixx
+++ b/DrawableObject.ixx
@@ -1557,7 +1557,11 @@ HRESULT DrawableObjectGdiTextOut::Draw(
 
     if (!glyphs.empty() || !attributeSource.GetString(DrawableObjectAttributeGlyphs).empty())
     {
-        text.reset(glyphs.reinterpret_as<char16_t const>());
+        // Assign to a temporary to work around bogus error.
+        //      message : A non-const reference may only be bound to an lvalue
+        // There's utterly no reason why you shouldn't be able to pass a temporary as mutable in the language. -_-
+        auto a = glyphs.reinterpret_as<char16_t const>();
+        text.reset(a);
         textOutFlags |= ETO_GLYPH_INDEX;
         // todo::: Pass glyph advances if non-empty. ETO_PDY
     }
@@ -2089,7 +2093,8 @@ HRESULT CachedDWriteGlyphRun::Update(
     // leaving the others as zeroes.
     if (glyphOffsetFloats.size() >= glyphs.size() * 2U)
     {
-        glyphOffsets.reset(glyphOffsetFloats.reinterpret_as<DWRITE_GLYPH_OFFSET const>());
+        auto a = glyphOffsetFloats.reinterpret_as<DWRITE_GLYPH_OFFSET const>();
+        glyphOffsets.reset(a);
     }
     else
     {
@@ -3370,7 +3375,8 @@ HRESULT DrawableObjectGdiPlusDrawDriverString::Draw(
     if (glyphs.empty() && attributeSource.GetString(DrawableObjectAttributeGlyphs).empty())
     {
         drawDriverStringFlags |= Gdiplus::DriverStringOptionsCmapLookup;
-        glyphs.reset(text.reinterpret_as<uint16_t const>());
+        auto a = text.reinterpret_as<uint16_t const>();
+        glyphs.reset(a);
         // todo::: Convert and pass glyph advances if non-empty.
     }
 
diff --git a/MainWindow.ixx b/MainWindow.ixx
index 2795ac5..cf7dbe0 100644
--- a/MainWindow.ixx
+++ b/MainWindow.ixx
@@ -481,7 +481,7 @@ INT_PTR MainWindow::InitializeMainDialog()
     // but they also ignore the Edit_SetCueBannerText call, meaning we can't
     // just call GetCueBannerText in the subclassed function. So store it as
     // a window property instead.
-    SetProp(attributeValuesEdit, L"CueBannerText", L"<no attributes selected>");
+    SetProp(attributeValuesEdit, L"CueBannerText", const_cast<wchar_t*>(L"<no attributes selected>"));
 
     auto attributesEdit = GetWindowFromId(hwnd_, IdcAttributesFilterEdit);
     Edit_SetCueBannerText(attributesEdit, L"<type attribute filter here>");
@@ -1100,7 +1100,7 @@ void MainWindow::InitializeDefaultDrawableObjects()
     ////////////////////
     // Initialize with typical APIs.
 
-    char16_t* const functionNames[] = {
+    char16_t const* const functionNames[] = {
         u"D2D DrawTextLayout",
         u"IDWriteBitmapRenderTarget IDWriteTextLayout",
         u"User32 DrawText",
diff --git a/TextLayoutSampler.vcxproj b/TextLayoutSampler.vcxproj
index c5e0799..5cb9304 100644
--- a/TextLayoutSampler.vcxproj
+++ b/TextLayoutSampler.vcxproj
@@ -63,7 +63,7 @@
       </UndefinePreprocessorDefinitions>
       <PrecompiledHeader>Use</PrecompiledHeader>
       <PrecompiledHeaderFile>precomp.h</PrecompiledHeaderFile>
-      <AdditionalOptions>/module:search $(IntDir)</AdditionalOptions>
+      <AdditionalOptions>/ifcSearchDir $(IntDir)</AdditionalOptions>
       <AdditionalIncludeDirectories>
       </AdditionalIncludeDirectories>
       <DisableSpecificWarnings>
@@ -73,7 +73,7 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
-      <PreprocessorDefinitions>_DEBUG;USE_CPP_MODULES=1;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_DEBUG;USE_CPP_MODULES=0;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
       <Optimization>Disabled</Optimization>
       <UndefinePreprocessorDefinitions>
@@ -89,7 +89,7 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <ClCompile>
-      <PreprocessorDefinitions>_DEBUG;USE_CPP_MODULES=1;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_DEBUG;USE_CPP_MODULES=0;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
       <Optimization>Disabled</Optimization>
       <UndefinePreprocessorDefinitions>
@@ -103,7 +103,7 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <ClCompile>
-      <PreprocessorDefinitions>NDEBUG;USE_CPP_MODULES=1;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>NDEBUG;USE_CPP_MODULES=0;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
       <UndefinePreprocessorDefinitions>
       </UndefinePreprocessorDefinitions>
@@ -125,7 +125,7 @@
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <ClCompile>
-      <PreprocessorDefinitions>NDEBUG;USE_CPP_MODULES=1;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>NDEBUG;USE_CPP_MODULES=0;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
       <UndefinePreprocessorDefinitions>
       </UndefinePreprocessorDefinitions>