microsoft
diff --git a/‎change/react-native-windows-73433f3d-c91f-4ae8-9618-75adc965a722.json
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+7Lines changed: 7 additions & 0 deletions b/‎change/react-native-windows-73433f3d-c91f-4ae8-9618-75adc965a722.json
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+7Lines changed: 7 additions & 0 deletions
diff --git a/‎vnext/Desktop/React.Windows.Desktop.vcxproj
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-3Lines changed: 0 additions & 3 deletions b/‎vnext/Desktop/React.Windows.Desktop.vcxproj
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diff --git a/‎vnext/Microsoft.ReactNative.Cxx/ReactContext.h
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+1-1Lines changed: 1 addition & 1 deletion b/‎vnext/Microsoft.ReactNative.Cxx/ReactContext.h
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+1-1Lines changed: 1 addition & 1 deletion
diff --git a/‎vnext/Microsoft.ReactNative/Fabric/Composition/CompositionEventHandler.cpp
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-1Lines changed: 0 additions & 1 deletion b/‎vnext/Microsoft.ReactNative/Fabric/Composition/CompositionEventHandler.cpp
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diff --git a/‎vnext/Microsoft.ReactNative/IReactContext.cpp
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+2-2Lines changed: 2 additions & 2 deletions b/‎vnext/Microsoft.ReactNative/IReactContext.cpp
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diff --git a/‎vnext/Microsoft.ReactNative/IReactContext.h
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+1-1Lines changed: 1 addition & 1 deletion b/‎vnext/Microsoft.ReactNative/IReactContext.h
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diff --git a/‎vnext/Microsoft.ReactNative/IReactContext.idl
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+2-2Lines changed: 2 additions & 2 deletions b/‎vnext/Microsoft.ReactNative/IReactContext.idl
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diff --git a/‎vnext/Microsoft.ReactNative/IReactPackageBuilder.idl
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+3-3Lines changed: 3 additions & 3 deletions b/‎vnext/Microsoft.ReactNative/IReactPackageBuilder.idl
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@@ -0,0 +1,7 @@
+{
+  "type": "prerelease",
+  "comment": "Remove Paper-only code from Fabric builds of Microsoft.ReactNative",
+  "packageName": "react-native-windows",
+  "email": "jthysell@microsoft.com",
+  "dependentChangeType": "patch"
+}
@@ -149,9 +149,6 @@
       -->
       <PreprocessorDefinitions>CORE_ABI;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </Midl>
-    <Midl>
-      <PreprocessorDefinitions Condition="'$(UseFabric)' == 'true'">USE_FABRIC;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-    </Midl>
   </ItemDefinitionGroup>
   <Import Project="$(ReactNativeWindowsDir)\PropertySheets\ReactCommunity.cpp.props" />
   <ItemGroup>
 
@@ -65,7 +65,7 @@ struct ReactContext {
     m_handle.EmitJSEvent(eventEmitterName, eventName, MakeJSValueWriter(std::forward<TArgs>(args)...));
   }
 
-#if !defined(CORE_ABI) && !defined(__APPLE__) && !defined(CXXUNITTESTS)
+#if !defined(CORE_ABI) && !defined(USE_FABRIC) && !defined(__APPLE__) && !defined(CXXUNITTESTS)
   // Dispatch eventName event to the view.
   // args are either function arguments or a single lambda with 'IJSValueWriter const&' argument.
   template <class... TArgs>
 
@@ -9,7 +9,6 @@
 #include <IReactContext.h>
 #include <React.h>
 #include <Views/DevMenu.h>
-#include <Views/ShadowNodeBase.h>
 #include <windows.h>
 #include <windowsx.h>
 #include <winrt/Windows.UI.Core.h>
 
@@ -4,7 +4,7 @@
 #include "pch.h"
 #include "IReactContext.h"
 #include "DynamicWriter.h"
-#ifndef CORE_ABI
+#if !defined(CORE_ABI) && !defined(USE_FABRIC)
 #include "XamlUIService.h"
 #endif
 
@@ -121,7 +121,7 @@ LoadingState ReactContext::LoadingState() noexcept {
   };
 }
 
-#ifndef CORE_ABI
+#if !defined(CORE_ABI) && !defined(USE_FABRIC)
 // Deprecated: Use XamlUIService directly.
 void ReactContext::DispatchEvent(
     xaml::FrameworkElement const &view,
 
@@ -46,7 +46,7 @@ struct ReactContext : winrt::implements<ReactContext, IReactContext> {
   IInspectable JSRuntime() noexcept;
   LoadingState LoadingState() noexcept;
 
-#ifndef CORE_ABI
+#if !defined(CORE_ABI) && !defined(USE_FABRIC)
   void DispatchEvent(
       xaml::FrameworkElement const &view,
       hstring const &eventName,
 
@@ -5,7 +5,7 @@ import "IJSValueWriter.idl"; // The import is to be deprecated with IReactContex
 import "IReactNotificationService.idl";
 import "IReactPropertyBag.idl";
 
-#ifndef CORE_ABI
+#if !defined(CORE_ABI) && !defined(USE_FABRIC)
 #include "NamespaceRedirect.h" // The include is to be deprecated with IReactContext::DispatchEvent
 #endif
 
@@ -185,7 +185,7 @@ namespace Microsoft.ReactNative
       "It is an experimental property that may be removed or changed in a future version.")
     Object JSRuntime { get; };
 
-#ifndef CORE_ABI
+#if !defined(CORE_ABI) && !defined(USE_FABRIC)
     [deprecated("Use @XamlUIService.DispatchEvent instead", deprecate, 1)]
     DOC_STRING("Deprecated property. Use @XamlUIService.DispatchEvent instead. It will be removed in a future version.")
     void DispatchEvent(XAML_NAMESPACE.FrameworkElement view, String eventName, JSValueArgWriter eventDataArgWriter);
 
@@ -3,7 +3,7 @@
 
 import "IReactContext.idl";
 import "IReactModuleBuilder.idl";
-#ifndef CORE_ABI
+#if !defined(CORE_ABI) && !defined(USE_FABRIC)
 import "IViewManager.idl";
 #endif
 
@@ -14,7 +14,7 @@ namespace Microsoft.ReactNative
   DOC_STRING("Provides information about a custom native module. See @IReactModuleBuilder.")
   delegate Object ReactModuleProvider(IReactModuleBuilder moduleBuilder);
 
-#ifndef CORE_ABI
+#if !defined(CORE_ABI) && !defined(USE_FABRIC)
   DOC_STRING("Provides information about a custom view manager. See @IViewManager.")
   delegate IViewManager ReactViewManagerProvider();
 #endif
@@ -32,7 +32,7 @@ namespace Microsoft.ReactNative
     "NOTE: TurboModules using JSI directly will not run correctly while using @ReactInstanceSettings.UseWebDebugger")
     void AddTurboModule(String moduleName, ReactModuleProvider moduleProvider);
 
-#ifndef CORE_ABI
+#if !defined(CORE_ABI) && !defined(USE_FABRIC)
     DOC_STRING("Adds a custom view manager. See @ReactViewManagerProvider.")
     void AddViewManager(String viewManagerName, ReactViewManagerProvider viewManagerProvider);
 #endif
Original file line number	Diff line number	Diff line change
`@@ -65,7 +65,7 @@ struct ReactContext {`
`65`	`65`	`m_handle.EmitJSEvent(eventEmitterName, eventName, MakeJSValueWriter(std::forward<TArgs>(args)...));`
`66`	`66`	`}`
`67`	`67`
`68`		`-#if !defined(CORE_ABI) && !defined(__APPLE__) && !defined(CXXUNITTESTS)`
	`68`	`+#if !defined(CORE_ABI) && !defined(USE_FABRIC) && !defined(__APPLE__) && !defined(CXXUNITTESTS)`
`69`	`69`	`// Dispatch eventName event to the view.`
`70`	`70`	`// args are either function arguments or a single lambda with 'IJSValueWriter const&' argument.`
`71`	`71`	`template <class... TArgs>`