diff --git a/build/common.props b/build/common.props
index 2d92eff547..1f336eb45d 100644
--- a/build/common.props
+++ b/build/common.props
@@ -16,8 +16,8 @@
     <PackageReference Include="Internal.AspNetCore.Sdk" Version="$(InternalAspNetCoreSdkVersion)" PrivateAssets="All" />
   </ItemGroup>
 
-  <ItemGroup Condition="'$(TargetFrameworkIdentifier)'=='.NETFramework' AND '$(OutputType)'=='library'">
-    <PackageReference Include="NETStandard.Library" Version="$(BundledNETStandardPackageVersion)" />
+  <ItemGroup Condition="'$(TargetFrameworkIdentifier)'=='.NETFramework'">
+    <PackageReference Include="NETStandard.Library.NETFramework" Version="$(NETStandardLibraryNETFrameworkVersion)" PrivateAssets="All" />
   </ItemGroup>
 
 </Project>
diff --git a/build/dependencies.props b/build/dependencies.props
index 226b77c333..1a75c90b26 100644
--- a/build/dependencies.props
+++ b/build/dependencies.props
@@ -3,7 +3,7 @@
     <AspNetCoreVersion>2.0.0-*</AspNetCoreVersion>
     <InternalAspNetCoreSdkVersion>2.1.0-*</InternalAspNetCoreSdkVersion>
     <MoqVersion>4.7.1</MoqVersion>
-    <NETStandardImplicitPackageVersion>$(BundledNETStandardPackageVersion)</NETStandardImplicitPackageVersion>
+    <NETStandardLibraryNETFrameworkVersion>2.0.0-*</NETStandardLibraryNETFrameworkVersion>
     <TestSdkVersion>15.3.0-*</TestSdkVersion>
     <XunitVersion>2.3.0-beta2-*</XunitVersion>
   </PropertyGroup>
diff --git a/samples/HttpOverridesSample/HttpOverridesSample.csproj b/samples/HttpOverridesSample/HttpOverridesSample.csproj
index a81f0815c1..9c8dc4616a 100644
--- a/samples/HttpOverridesSample/HttpOverridesSample.csproj
+++ b/samples/HttpOverridesSample/HttpOverridesSample.csproj
@@ -3,7 +3,8 @@
   <Import Project="..\..\build\dependencies.props" />
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFrameworks>net461;netcoreapp2.0</TargetFrameworks>
+    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp2.0</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/samples/ResponseBufferingSample/ResponseBufferingSample.csproj b/samples/ResponseBufferingSample/ResponseBufferingSample.csproj
index cec354e0f9..f0aa4a439a 100644
--- a/samples/ResponseBufferingSample/ResponseBufferingSample.csproj
+++ b/samples/ResponseBufferingSample/ResponseBufferingSample.csproj
@@ -3,7 +3,8 @@
   <Import Project="..\..\build\dependencies.props" />
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFrameworks>net461;netcoreapp2.0</TargetFrameworks>
+    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp2.0</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/samples/ResponseCompressionSample/ResponseCompressionSample.csproj b/samples/ResponseCompressionSample/ResponseCompressionSample.csproj
index 7de989af16..a5792ad3e8 100644
--- a/samples/ResponseCompressionSample/ResponseCompressionSample.csproj
+++ b/samples/ResponseCompressionSample/ResponseCompressionSample.csproj
@@ -3,7 +3,8 @@
   <Import Project="..\..\build\dependencies.props" />
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFrameworks>net461;netcoreapp2.0</TargetFrameworks>
+    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp2.0</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/samples/RewriteSample/RewriteSample.csproj b/samples/RewriteSample/RewriteSample.csproj
index a63cca0480..f9c78e7131 100644
--- a/samples/RewriteSample/RewriteSample.csproj
+++ b/samples/RewriteSample/RewriteSample.csproj
@@ -3,7 +3,8 @@
   <Import Project="..\..\build\dependencies.props" />
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFrameworks>net461;netcoreapp2.0</TargetFrameworks>
+    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp2.0</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/Microsoft.AspNetCore.Buffering/Microsoft.AspNetCore.Buffering.csproj b/src/Microsoft.AspNetCore.Buffering/Microsoft.AspNetCore.Buffering.csproj
index 36915fa214..545b87b140 100644
--- a/src/Microsoft.AspNetCore.Buffering/Microsoft.AspNetCore.Buffering.csproj
+++ b/src/Microsoft.AspNetCore.Buffering/Microsoft.AspNetCore.Buffering.csproj
@@ -5,7 +5,7 @@
   <PropertyGroup>
     <VersionPrefix>0.3.0</VersionPrefix>
     <Description>ASP.NET Core middleware for buffering response bodies.</Description>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFramework>netstandard2.0</TargetFramework>
     <NoWarn>$(NoWarn);CS1591</NoWarn>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <PackageTags>aspnetcore;buffer;buffering</PackageTags>
diff --git a/src/Microsoft.AspNetCore.HttpOverrides/Microsoft.AspNetCore.HttpOverrides.csproj b/src/Microsoft.AspNetCore.HttpOverrides/Microsoft.AspNetCore.HttpOverrides.csproj
index 01cfb31fd3..5ebd793c2d 100644
--- a/src/Microsoft.AspNetCore.HttpOverrides/Microsoft.AspNetCore.HttpOverrides.csproj
+++ b/src/Microsoft.AspNetCore.HttpOverrides/Microsoft.AspNetCore.HttpOverrides.csproj
@@ -7,7 +7,7 @@
     <Description>ASP.NET Core basic middleware for supporting HTTP method overrides. Includes:
 * X-Forwarded-* headers to forward headers from a proxy.
 * HTTP method override header.</Description>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFramework>netstandard2.0</TargetFramework>
     <NoWarn>$(NoWarn);CS1591</NoWarn>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <PackageTags>aspnetcore;proxy;headers;xforwarded</PackageTags>
diff --git a/src/Microsoft.AspNetCore.ResponseCompression/Microsoft.AspNetCore.ResponseCompression.csproj b/src/Microsoft.AspNetCore.ResponseCompression/Microsoft.AspNetCore.ResponseCompression.csproj
index fc5f1b53b6..d87066a572 100644
--- a/src/Microsoft.AspNetCore.ResponseCompression/Microsoft.AspNetCore.ResponseCompression.csproj
+++ b/src/Microsoft.AspNetCore.ResponseCompression/Microsoft.AspNetCore.ResponseCompression.csproj
@@ -5,7 +5,7 @@
   <PropertyGroup>
     <VersionPrefix>2.0.0</VersionPrefix>
     <Description>ASP.NET Core middleware for HTTP Response compression.</Description>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFramework>netstandard2.0</TargetFramework>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <PackageTags>aspnetcore</PackageTags>
   </PropertyGroup>
diff --git a/src/Microsoft.AspNetCore.Rewrite/Microsoft.AspNetCore.Rewrite.csproj b/src/Microsoft.AspNetCore.Rewrite/Microsoft.AspNetCore.Rewrite.csproj
index 530e010f35..c3577cb2e8 100644
--- a/src/Microsoft.AspNetCore.Rewrite/Microsoft.AspNetCore.Rewrite.csproj
+++ b/src/Microsoft.AspNetCore.Rewrite/Microsoft.AspNetCore.Rewrite.csproj
@@ -8,7 +8,7 @@
 * Support for custom URL rewrite rules
 * Support for running IIS URL Rewrite module rules
 * Support for running Apache mod_rewrite rules.</Description>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFramework>netstandard2.0</TargetFramework>
     <NoWarn>$(NoWarn);CS1591</NoWarn>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <PackageTags>aspnetcore;urlrewrite;mod_rewrite</PackageTags>
diff --git a/test/Microsoft.AspNetCore.Buffering.Tests/Microsoft.AspNetCore.Buffering.Tests.csproj b/test/Microsoft.AspNetCore.Buffering.Tests/Microsoft.AspNetCore.Buffering.Tests.csproj
index 1a2e0b4be2..84ce6801da 100644
--- a/test/Microsoft.AspNetCore.Buffering.Tests/Microsoft.AspNetCore.Buffering.Tests.csproj
+++ b/test/Microsoft.AspNetCore.Buffering.Tests/Microsoft.AspNetCore.Buffering.Tests.csproj
@@ -3,7 +3,8 @@
   <Import Project="..\..\build\common.props" />
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFrameworks>net461;netcoreapp2.0</TargetFrameworks>
+    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp2.0</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/Microsoft.AspNetCore.HttpOverrides.Tests/Microsoft.AspNetCore.HttpOverrides.Tests.csproj b/test/Microsoft.AspNetCore.HttpOverrides.Tests/Microsoft.AspNetCore.HttpOverrides.Tests.csproj
index 2b04e2965c..2cb29a9fca 100644
--- a/test/Microsoft.AspNetCore.HttpOverrides.Tests/Microsoft.AspNetCore.HttpOverrides.Tests.csproj
+++ b/test/Microsoft.AspNetCore.HttpOverrides.Tests/Microsoft.AspNetCore.HttpOverrides.Tests.csproj
@@ -3,7 +3,8 @@
   <Import Project="..\..\build\common.props" />
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFrameworks>net461;netcoreapp2.0</TargetFrameworks>
+    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp2.0</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/Microsoft.AspNetCore.ResponseCompression.Tests/Microsoft.AspNetCore.ResponseCompression.Tests.csproj b/test/Microsoft.AspNetCore.ResponseCompression.Tests/Microsoft.AspNetCore.ResponseCompression.Tests.csproj
index faf0649719..c689c1b6f0 100644
--- a/test/Microsoft.AspNetCore.ResponseCompression.Tests/Microsoft.AspNetCore.ResponseCompression.Tests.csproj
+++ b/test/Microsoft.AspNetCore.ResponseCompression.Tests/Microsoft.AspNetCore.ResponseCompression.Tests.csproj
@@ -3,7 +3,8 @@
   <Import Project="..\..\build\common.props" />
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFrameworks>net461;netcoreapp2.0</TargetFrameworks>
+    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp2.0</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/test/Microsoft.AspNetCore.Rewrite.Tests/Microsoft.AspNetCore.Rewrite.Tests.csproj b/test/Microsoft.AspNetCore.Rewrite.Tests/Microsoft.AspNetCore.Rewrite.Tests.csproj
index bbff9efe12..5d5d66e3a6 100644
--- a/test/Microsoft.AspNetCore.Rewrite.Tests/Microsoft.AspNetCore.Rewrite.Tests.csproj
+++ b/test/Microsoft.AspNetCore.Rewrite.Tests/Microsoft.AspNetCore.Rewrite.Tests.csproj
@@ -3,7 +3,8 @@
   <Import Project="..\..\build\common.props" />
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFrameworks>net461;netcoreapp2.0</TargetFrameworks>
+    <TargetFrameworks Condition=" '$(OS)' != 'Windows_NT' ">netcoreapp2.0</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>