diff --git a/src/libraries/System.Net.WebSockets/tests/System.Net.WebSockets.Tests.csproj b/src/libraries/System.Net.WebSockets/tests/System.Net.WebSockets.Tests.csproj
index 70992d1a221d..8af7c5bed350 100644
--- a/src/libraries/System.Net.WebSockets/tests/System.Net.WebSockets.Tests.csproj
+++ b/src/libraries/System.Net.WebSockets/tests/System.Net.WebSockets.Tests.csproj
@@ -2,6 +2,9 @@
   <PropertyGroup>
     <TargetFramework>$(NetCoreAppCurrent)</TargetFramework>
   </PropertyGroup>
+  <ItemGroup>
+    <RdXmlFile Include="default.rd.xml" />
+  </ItemGroup>
   <ItemGroup>
     <Compile Include="WebSocketTests.cs" />
     <Compile Include="WebSocketExceptionTests.cs" />
diff --git a/src/libraries/System.Net.WebSockets/tests/default.rd.xml b/src/libraries/System.Net.WebSockets/tests/default.rd.xml
new file mode 100644
index 000000000000..3353347a1dcb
--- /dev/null
+++ b/src/libraries/System.Net.WebSockets/tests/default.rd.xml
@@ -0,0 +1,15 @@
+<Directives>
+  <Application>
+    <Assembly Name="System.Linq">
+      <!-- called by xUnit in obscure MemberData scenarios  -->
+      <Type Name="System.Linq.Enumerable">
+        <Method Name="Cast" Dynamic="Required All">
+          <GenericArgument Name="System.Net.WebSockets.WebSocketState,System.Net.WebSockets" />
+        </Method>
+        <Method Name="ToArray" Dynamic="Required All">
+          <GenericArgument Name="System.Net.WebSockets.WebSocketState,System.Net.WebSockets" />
+        </Method>
+      </Type>
+    </Assembly>    
+  </Application>
+</Directives>
diff --git a/src/libraries/tests.proj b/src/libraries/tests.proj
index 17fedc722ef0..a351c2951006 100644
--- a/src/libraries/tests.proj
+++ b/src/libraries/tests.proj
@@ -475,6 +475,7 @@
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Speech\tests\System.Speech.Tests.csproj" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.DirectoryServices\tests\System.DirectoryServices.Tests.csproj" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.DirectoryServices.AccountManagement\tests\System.DirectoryServices.AccountManagement.Tests.csproj" />
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Management\tests\System.Management.Tests.csproj" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Transactions.Local\tests\System.Transactions.Local.Tests.csproj" />
 
     <!-- Uses something weird for testing ("Stashbox"), doesn't work without Ref.Emit at all -->
@@ -486,6 +487,12 @@
     <!-- Xslt is ref.emit -->
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Private.Xml\tests\Xslt\XslCompiledTransformApi\System.Xml.Xsl.XslCompiledTransformApi.Tests.csproj" />
 
+    <!-- These are failing in localized runs due to satellite assembly reflection in the test. Work fine otherwise. -->
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Private.Xml\tests\XmlSchema\XmlSchemaValidatorApi\System.Xml.XmlSchema.XmlSchemaValidatorApi.Tests.csproj"
+                      Condition="'$(TargetOS)' == 'windows'"/>
+    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Private.Xml\tests\Xslt\XslTransformApi\System.Xml.Xsl.XslTransformApi.Tests.csproj"
+                      Condition="'$(TargetOS)' == 'windows'"/>
+
     <!--This test fails on Windows.10.Amd64.Server2022 -->
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.IO.FileSystem\tests\System.IO.FileSystem.Tests.csproj" />
     <!--Needs work to get these tests to pass -->
@@ -503,8 +510,6 @@
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Diagnostics.PerformanceCounter\tests\System.Diagnostics.PerformanceCounter.Tests.csproj" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Security.Cryptography.Xml\tests\System.Security.Cryptography.Xml.Tests.csproj" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.ComponentModel.Annotations\tests\System.ComponentModel.Annotations.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Private.Xml\tests\XmlSchema\XmlSchemaValidatorApi\System.Xml.XmlSchema.XmlSchemaValidatorApi.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Private.Xml\tests\Xslt\XslTransformApi\System.Xml.Xsl.XslTransformApi.Tests.csproj" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)Microsoft.VisualBasic.Core\tests\Microsoft.VisualBasic.Core.Tests.csproj" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.CodeDom\tests\System.CodeDom.Tests.csproj" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.ComponentModel.Composition\tests\System.ComponentModel.Composition.Tests.csproj" />
@@ -514,7 +519,6 @@
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Composition.TypedParts\tests\System.Composition.TypedParts.Tests.csproj" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Configuration.ConfigurationManager\tests\System.Configuration.ConfigurationManager.Tests.csproj" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Data.Common\tests\System.Data.Common.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Data.DataSetExtensions\tests\System.Data.DataSetExtensions.Tests.csproj" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Diagnostics.DiagnosticSource\tests\TestWithConfigSwitches\System.Diagnostics.DiagnosticSource.Switches.Tests.csproj" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Diagnostics.StackTrace\tests\System.Diagnostics.StackTrace.Tests.csproj" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Diagnostics.Tracing\tests\System.Diagnostics.Tracing.Tests.csproj" />
@@ -522,8 +526,6 @@
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Dynamic.Runtime\tests\System.Dynamic.Runtime.Tests.csproj" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Formats.Cbor\tests\System.Formats.Cbor.Tests.csproj" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Linq.Queryable\tests\System.Linq.Queryable.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Management\tests\System.Management.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Net.WebSockets\tests\System.Net.WebSockets.Tests.csproj" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.ObjectModel\tests\System.ObjectModel.Tests.csproj" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Private.Runtime.InteropServices.JavaScript\tests\System.Private.Runtime.InteropServices.JavaScript.Tests.csproj" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Private.Xml\tests\XmlSerializer\ReflectionOnly\System.Xml.XmlSerializer.ReflectionOnly.Tests.csproj" />