diff --git a/src/System.ComponentModel.Composition/System.ComponentModel.Composition.sln b/src/System.ComponentModel.Composition/System.ComponentModel.Composition.sln
index 8bfa5e87791e..98f7b86c610e 100644
--- a/src/System.ComponentModel.Composition/System.ComponentModel.Composition.sln
+++ b/src/System.ComponentModel.Composition/System.ComponentModel.Composition.sln
@@ -7,6 +7,11 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "System.ComponentModel.Compo
 		{2D694AC8-A12F-4622-9405-74E20EC40C3A} = {2D694AC8-A12F-4622-9405-74E20EC40C3A}
 	EndProjectSection
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "System.ComponentModel.Composition.Noop.Assembly", "tests\System.ComponentModel.Composition.Noop.Assembly\System.ComponentModel.Composition.Noop.Assembly.csproj", "{396D6EBF-60BD-4DAF-8783-FB403E070A56}"
+	ProjectSection(ProjectDependencies) = postProject
+		{2D694AC8-A12F-4622-9405-74E20EC40C3A} = {2D694AC8-A12F-4622-9405-74E20EC40C3A}
+	EndProjectSection
+EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "System.ComponentModel.Composition", "src\System.ComponentModel.Composition.csproj", "{2D694AC8-A12F-4622-9405-74E20EC40C3A}"
 	ProjectSection(ProjectDependencies) = postProject
 		{DD3B8052-CE03-4159-8311-1CE1382C51B0} = {DD3B8052-CE03-4159-8311-1CE1382C51B0}
@@ -30,6 +35,10 @@ Global
 		{59F4682D-C41D-45A7-9798-16C75525BB1D}.Debug|Any CPU.Build.0 = netcoreapp-Debug|Any CPU
 		{59F4682D-C41D-45A7-9798-16C75525BB1D}.Release|Any CPU.ActiveCfg = netcoreapp-Release|Any CPU
 		{59F4682D-C41D-45A7-9798-16C75525BB1D}.Release|Any CPU.Build.0 = netcoreapp-Release|Any CPU
+		{396D6EBF-60BD-4DAF-8783-FB403E070A56}.Debug|Any CPU.ActiveCfg = netcoreapp-Debug|Any CPU
+		{396D6EBF-60BD-4DAF-8783-FB403E070A56}.Debug|Any CPU.Build.0 = netcoreapp-Debug|Any CPU
+		{396D6EBF-60BD-4DAF-8783-FB403E070A56}.Release|Any CPU.ActiveCfg = netcoreapp-Release|Any CPU
+		{396D6EBF-60BD-4DAF-8783-FB403E070A56}.Release|Any CPU.Build.0 = netcoreapp-Release|Any CPU
 		{2D694AC8-A12F-4622-9405-74E20EC40C3A}.Debug|Any CPU.ActiveCfg = netcoreapp-Debug|Any CPU
 		{2D694AC8-A12F-4622-9405-74E20EC40C3A}.Debug|Any CPU.Build.0 = netcoreapp-Debug|Any CPU
 		{2D694AC8-A12F-4622-9405-74E20EC40C3A}.Release|Any CPU.ActiveCfg = netcoreapp-Release|Any CPU
@@ -44,6 +53,7 @@ Global
 	EndGlobalSection
 	GlobalSection(NestedProjects) = preSolution
 		{59F4682D-C41D-45A7-9798-16C75525BB1D} = {1A2F9F4A-A032-433E-B914-ADD5992BB178}
+		{396D6EBF-60BD-4DAF-8783-FB403E070A56} = {1A2F9F4A-A032-433E-B914-ADD5992BB178}
 		{2D694AC8-A12F-4622-9405-74E20EC40C3A} = {E107E9C1-E893-4E87-987E-04EF0DCEAEFD}
 		{DD3B8052-CE03-4159-8311-1CE1382C51B0} = {2E666815-2EDB-464B-9DF6-380BF4789AD4}
 	EndGlobalSection
diff --git a/src/System.ComponentModel.Composition/src/System/ComponentModel/Composition/Hosting/AssemblyCatalog.cs b/src/System.ComponentModel.Composition/src/System/ComponentModel/Composition/Hosting/AssemblyCatalog.cs
index d501f5c8504b..f05d654ce2e3 100644
--- a/src/System.ComponentModel.Composition/src/System/ComponentModel/Composition/Hosting/AssemblyCatalog.cs
+++ b/src/System.ComponentModel.Composition/src/System/ComponentModel/Composition/Hosting/AssemblyCatalog.cs
@@ -8,6 +8,7 @@
 using System.Diagnostics.CodeAnalysis;
 using System.Diagnostics.Contracts;
 using System.Globalization;
+using System.IO;
 using System.Reflection;
 using System.Threading;
 using Microsoft.Internal;
@@ -566,7 +567,15 @@ private static Assembly LoadAssembly(string codeBase)
                 assemblyName.CodeBase = codeBase;
             }
 
-            return Assembly.Load(assemblyName);
+            try
+            {
+                return Assembly.Load(assemblyName);
+            }
+            //fallback attempt issue https://github.com/dotnet/corefx/issues/27433
+            catch (FileNotFoundException)
+            {
+                return Assembly.LoadFrom(codeBase);
+            }
         }
     }
 }
diff --git a/src/System.ComponentModel.Composition/tests/System.ComponentModel.Composition.Noop.Assembly/Configurations.props b/src/System.ComponentModel.Composition/tests/System.ComponentModel.Composition.Noop.Assembly/Configurations.props
new file mode 100644
index 000000000000..77a4b65bc94a
--- /dev/null
+++ b/src/System.ComponentModel.Composition/tests/System.ComponentModel.Composition.Noop.Assembly/Configurations.props
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <BuildConfigurations>
+      netstandard;
+      netcoreapp;
+    </BuildConfigurations>
+  </PropertyGroup>
+</Project>
\ No newline at end of file
diff --git a/src/System.ComponentModel.Composition/tests/System.ComponentModel.Composition.Noop.Assembly/System.ComponentModel.Composition.Noop.Assembly.csproj b/src/System.ComponentModel.Composition/tests/System.ComponentModel.Composition.Noop.Assembly/System.ComponentModel.Composition.Noop.Assembly.csproj
new file mode 100644
index 000000000000..12c34c5bbbd0
--- /dev/null
+++ b/src/System.ComponentModel.Composition/tests/System.ComponentModel.Composition.Noop.Assembly/System.ComponentModel.Composition.Noop.Assembly.csproj
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.props))\dir.props" />
+  <PropertyGroup>
+    <ProjectGuid>{396D6EBF-60BD-4DAF-8783-FB403E070A56}</ProjectGuid>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'netcoreapp-Debug|AnyCPU'" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'netcoreapp-Release|AnyCPU'" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'netstandard-Debug|AnyCPU'" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'netstandard-Release|AnyCPU'" />
+  <ItemGroup>
+    <Compile Include="TestClass.cs" />
+  </ItemGroup>
+  <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.targets))\dir.targets" />
+</Project>
\ No newline at end of file
diff --git a/src/System.ComponentModel.Composition/tests/System.ComponentModel.Composition.Noop.Assembly/TestClass.cs b/src/System.ComponentModel.Composition/tests/System.ComponentModel.Composition.Noop.Assembly/TestClass.cs
new file mode 100644
index 000000000000..75e7475012f5
--- /dev/null
+++ b/src/System.ComponentModel.Composition/tests/System.ComponentModel.Composition.Noop.Assembly/TestClass.cs
@@ -0,0 +1,11 @@
+// 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.
+
+namespace System.ComponentModel.Composition.Noop.Assembly
+{
+    [Export]
+    public class TestClass
+    {
+    }
+}
diff --git a/src/System.ComponentModel.Composition/tests/System.ComponentModel.Composition.Tests.csproj b/src/System.ComponentModel.Composition/tests/System.ComponentModel.Composition.Tests.csproj
index 72fe4fde46f7..4fa3445ffbeb 100644
--- a/src/System.ComponentModel.Composition/tests/System.ComponentModel.Composition.Tests.csproj
+++ b/src/System.ComponentModel.Composition/tests/System.ComponentModel.Composition.Tests.csproj
@@ -187,5 +187,15 @@
     <Compile Include="TestAssembly.cs" />
     <Compile Include="TransparentTestCase.cs" />
   </ItemGroup>
+  <ItemGroup>
+    <Service Include="{82A7F48D-3B50-4B1E-B82E-3ADA8210C358}" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="System.ComponentModel.Composition.Noop.Assembly/System.ComponentModel.Composition.Noop.Assembly.csproj">
+      <ReferenceOutputAssembly>false</ReferenceOutputAssembly>
+      <OutputItemType>content</OutputItemType>
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </ProjectReference>
+  </ItemGroup>
   <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.targets))\dir.targets" />
-</Project>
\ No newline at end of file
+</Project>
diff --git a/src/System.ComponentModel.Composition/tests/System/ComponentModel/Composition/Hosting/AssemblyCatalogTests.cs b/src/System.ComponentModel.Composition/tests/System/ComponentModel/Composition/Hosting/AssemblyCatalogTests.cs
index cd37556d0518..b5e8d4cb9ec3 100644
--- a/src/System.ComponentModel.Composition/tests/System/ComponentModel/Composition/Hosting/AssemblyCatalogTests.cs
+++ b/src/System.ComponentModel.Composition/tests/System/ComponentModel/Composition/Hosting/AssemblyCatalogTests.cs
@@ -1081,5 +1081,18 @@ public void ToString_ShouldReturnICompositionElementDisplayName()
                 Assert.Equal(catalog.DisplayName, catalog.ToString());
             }
         }
+
+        [Fact]                       
+        public void NonStaticallyReferencedAssembly()
+        {
+            string testAssembly = "System.ComponentModel.Composition.Noop.Assembly.dll";
+            var directory = TemporaryFileCopier.GetNewTemporaryDirectory();
+            Directory.CreateDirectory(directory);
+            var finalPath = Path.Combine(directory, testAssembly);
+            var sourcePath = Path.Combine(Directory.GetCurrentDirectory(), testAssembly);
+            File.Copy(sourcePath, finalPath);
+            var assemblyCatalog = new AssemblyCatalog(finalPath);
+            Assert.NotEmpty(assemblyCatalog);
+        }
     }
 }
diff --git a/src/System.ComponentModel.Composition/tests/System/ComponentModel/Composition/Hosting/DirectoryCatalogTests.cs b/src/System.ComponentModel.Composition/tests/System/ComponentModel/Composition/Hosting/DirectoryCatalogTests.cs
index 0ffb17cb9717..5d7613c36931 100644
--- a/src/System.ComponentModel.Composition/tests/System/ComponentModel/Composition/Hosting/DirectoryCatalogTests.cs
+++ b/src/System.ComponentModel.Composition/tests/System/ComponentModel/Composition/Hosting/DirectoryCatalogTests.cs
@@ -343,6 +343,19 @@ public void LoadedFiles_ContainsMultipleDllsAndSomeNonDll_ShouldOnlyContainDlls(
                     cat.LoadedFiles);
         }
 
+        [Fact]
+        public void LoadedFiles_NonStaticallyReferencedAssembly()
+        {
+            string testAssembly = "System.ComponentModel.Composition.Noop.Assembly.dll";
+            var directory = TemporaryFileCopier.GetNewTemporaryDirectory();
+            Directory.CreateDirectory(directory);
+            var finalPath = Path.Combine(directory, testAssembly);
+            var sourcePath = Path.Combine(Directory.GetCurrentDirectory(), testAssembly);
+            File.Copy(sourcePath, finalPath);
+            var catalog = new DirectoryCatalog(directory, "*.dll");
+            Assert.NotEmpty(catalog);
+        }
+
         [Fact]
         public void Constructor_InvalidAssembly_ShouldBeFine()
         {