diff --git a/src/ExpressionEvaluator/Core/Source/ResultProvider/Portable/Microsoft - Backup.CodeAnalysis.ResultProvider.csproj b/src/ExpressionEvaluator/Core/Source/ResultProvider/Portable/Microsoft - Backup.CodeAnalysis.ResultProvider.csproj
new file mode 100644
index 0000000000000..740281bca5615
--- /dev/null
+++ b/src/ExpressionEvaluator/Core/Source/ResultProvider/Portable/Microsoft - Backup.CodeAnalysis.ResultProvider.csproj	
@@ -0,0 +1,83 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Licensed to the .NET Foundation under one or more agreements. The .NET Foundation licenses this file to you under the MIT license. See the LICENSE file in the project root for more information. -->
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <OutputType>Library</OutputType>
+    <RootNamespace>Microsoft.CodeAnalysis.ExpressionEvaluator</RootNamespace>
+    <AssemblyName>Microsoft.CodeAnalysis.ExpressionEvaluator.ResultProvider</AssemblyName>
+    <TargetFrameworks>netstandard2.0</TargetFrameworks>
+    <ApplyNgenOptimization>full</ApplyNgenOptimization>
+  </PropertyGroup>
+  <ItemGroup Label="Linked Files">
+    <Compile Include="..\..\..\..\..\Compilers\Core\Portable\CaseInsensitiveComparison.cs">
+      <Link>Compiler\CaseInsensitiveComparison.cs</Link>
+    </Compile>
+    <Compile Include="..\..\..\..\..\Dependencies\PooledObjects\PooledStringBuilder.cs">
+      <Link>Compiler\Collections\PooledStringBuilder.cs</Link>
+    </Compile>
+    <Compile Include="..\..\..\..\..\Compilers\Core\Portable\InternalUtilities\Debug.cs">
+      <Link>Compiler\InternalUtilities\Debug.cs</Link>
+    </Compile>
+    <Compile Include="..\..\..\..\..\Compilers\Core\Portable\InternalUtilities\FailFast.cs">
+      <Link>Compiler\InternalUtilities\FailFast.cs</Link>
+    </Compile>
+    <Compile Include="..\..\..\..\..\Compilers\Core\Portable\InternalUtilities\FatalError.cs">
+      <Link>Compiler\InternalUtilities\FatalError.cs</Link>
+    </Compile>
+    <Compile Include="..\..\..\..\..\Compilers\Core\Portable\InternalUtilities\EnumField.cs">
+      <Link>Compiler\InternalUtilities\EnumField.cs</Link>
+    </Compile>
+    <Compile Include="..\..\..\..\..\Compilers\Core\Portable\InternalUtilities\ExceptionUtilities.cs">
+      <Link>Compiler\InternalUtilities\ExceptionUtilities.cs</Link>
+    </Compile>
+    <Compile Include="..\..\..\..\..\Compilers\Core\Portable\InternalUtilities\NullableAttributes.cs">
+      <Link>Compiler\InternalUtilities\NullableAttributes.cs</Link>
+    </Compile>
+    <Compile Include="..\..\..\..\..\Compilers\Core\Portable\InternalUtilities\ReflectionUtilities.cs">
+      <Link>Compiler\InternalUtilities\ReflectionUtilities.cs</Link>
+    </Compile>
+    <Compile Include="..\..\..\..\..\Dependencies\PooledObjects\ObjectPool`1.cs">
+      <Link>Compiler\InternalUtilities\ObjectPool`1.cs</Link>
+    </Compile>
+    <Compile Include="..\..\..\..\..\Compilers\Core\Portable\SymbolDisplay\ObjectDisplayExtensions.cs">
+      <Link>Compiler\SymbolDisplay\ObjectDisplayExtensions.cs</Link>
+    </Compile>
+    <Compile Include="..\..\..\..\..\Compilers\Core\Portable\SymbolDisplay\ObjectDisplayOptions.cs">
+      <Link>Compiler\SymbolDisplay\ObjectDisplayOptions.cs</Link>
+    </Compile>
+    <Compile Include="..\..\..\..\..\Compilers\Core\Portable\SymbolDisplay\SymbolDisplayPartKind.cs">
+      <Link>Compiler\SymbolDisplay\SymbolDisplayPartKind.cs</Link>
+    </Compile>
+    <Compile Include="..\..\..\..\..\Compilers\Core\Portable\Symbols\WellKnownMemberNames.cs">
+      <Link>Compiler\Symbols\WellKnownMemberNames.cs</Link>
+    </Compile>
+    <Compile Include="..\..\..\..\..\Compilers\Core\Portable\Xml\XmlCharType.cs">
+      <Link>Compiler\Xml\XmlCharType.cs</Link>
+    </Compile>
+    <Compile Include="..\..\..\..\..\Test\PdbUtilities\Shared\DateTimeUtilities.cs">
+      <Link>Helpers\DateTimeUtilities.cs</Link>
+    </Compile>
+    <Compile Include="..\..\ExpressionCompiler\CustomTypeInfo.cs">
+      <Link>ExpressionCompiler\CustomTypeInfo.cs</Link>
+    </Compile>
+    <Compile Include="..\..\ExpressionCompiler\DynamicFlagsCustomTypeInfo.cs">
+      <Link>ExpressionCompiler\DynamicFlagsCustomTypeInfo.cs</Link>
+    </Compile>
+    <Compile Include="..\..\ExpressionCompiler\ExpressionEvaluatorFatalError.cs">
+      <Link>ExpressionCompiler\ExpressionEvaluatorFatalError.cs</Link>
+    </Compile>
+  </ItemGroup>
+  <ItemGroup>
+    <EmbeddedResource Update="Resources.resx" GenerateSource="true" />
+  </ItemGroup>
+  <ItemGroup>
+    <InternalsVisibleTo Include="Microsoft.CodeAnalysis.CSharp.ExpressionEvaluator.ResultProvider" />
+    <InternalsVisibleTo Include="Microsoft.CodeAnalysis.VisualBasic.ExpressionEvaluator.ResultProvider" />
+  </ItemGroup>
+  <ItemGroup>
+    <PackageReference Include="Microsoft.VisualStudio.Debugger.Engine-implementation" Version="$(MicrosoftVisualStudioDebuggerEngineimplementationVersion)" />
+    <PackageReference Include="Microsoft.VisualStudio.Debugger.Metadata-implementation" Version="$(MicrosoftVisualStudioDebuggerMetadataimplementationVersion)" />
+    <PackageReference Include="System.Memory" Version="$(SystemMemoryVersion)" />
+  </ItemGroup>
+  <Import Project="..\ResultProvider.projitems" Label="Shared" />
+</Project>
\ No newline at end of file
diff --git a/src/ExpressionEvaluator/Core/Source/ResultProvider/Portable/Microsoft.CodeAnalysis.ResultProvider.csproj b/src/ExpressionEvaluator/Core/Source/ResultProvider/Portable/Microsoft.CodeAnalysis.ResultProvider.csproj
index 740281bca5615..12de7084e861c 100644
--- a/src/ExpressionEvaluator/Core/Source/ResultProvider/Portable/Microsoft.CodeAnalysis.ResultProvider.csproj
+++ b/src/ExpressionEvaluator/Core/Source/ResultProvider/Portable/Microsoft.CodeAnalysis.ResultProvider.csproj
@@ -5,7 +5,8 @@
     <OutputType>Library</OutputType>
     <RootNamespace>Microsoft.CodeAnalysis.ExpressionEvaluator</RootNamespace>
     <AssemblyName>Microsoft.CodeAnalysis.ExpressionEvaluator.ResultProvider</AssemblyName>
-    <TargetFrameworks>netstandard2.0</TargetFrameworks>
+    <!-- We need to support Windows OneCore, which runs Core CLR 1.0 (Windows OneCore) -->
+    <TargetFramework>netstandard1.3</TargetFramework>
     <ApplyNgenOptimization>full</ApplyNgenOptimization>
   </PropertyGroup>
   <ItemGroup Label="Linked Files">
@@ -77,7 +78,6 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.VisualStudio.Debugger.Engine-implementation" Version="$(MicrosoftVisualStudioDebuggerEngineimplementationVersion)" />
     <PackageReference Include="Microsoft.VisualStudio.Debugger.Metadata-implementation" Version="$(MicrosoftVisualStudioDebuggerMetadataimplementationVersion)" />
-    <PackageReference Include="System.Memory" Version="$(SystemMemoryVersion)" />
   </ItemGroup>
   <Import Project="..\ResultProvider.projitems" Label="Shared" />
 </Project>
\ No newline at end of file