diff --git a/src/Setup/Files.wxs b/src/Setup/Files.wxs
index 28afaca4bb..8925c4e6a2 100644
--- a/src/Setup/Files.wxs
+++ b/src/Setup/Files.wxs
@@ -1217,15 +1217,9 @@
 										<Component Guid="DE04B306-0C6D-434C-A6DC-6F450AAFB108" Id="IronPythonModulesDll" DiskId="1">
 											<File Source="..\..\AddIns\AddIns\BackendBindings\PythonBinding\IronPython.Modules.dll" Name="IronPython.Modules.dll" Id="IronPython.Modules.dll" KeyPath="yes" Assembly=".net" AssemblyApplication="IronPython.Modules.dll" AssemblyManifest="IronPython.Modules.dll" />
 										</Component>
-										<Component Guid="FF5C354F-51A3-405A-BB6F-0BA1128E2DC6" Id="MicrosoftScriptingCoreDll" DiskId="1">
-											<File Source="..\..\AddIns\AddIns\BackendBindings\PythonBinding\Microsoft.Scripting.Core.dll" Name="Microsoft.Scripting.Core.dll" Id="Microsoft.Scripting.Core.dll" KeyPath="yes" Assembly=".net" AssemblyApplication="Microsoft.Scripting.Core.dll" AssemblyManifest="Microsoft.Scripting.Core.dll" />
-										</Component>
 										<Component Guid="5849E9E1-39E4-45B5-B2F0-B07F8A21085D" Id="MicrosoftScriptingDll" DiskId="1">
 											<File Source="..\..\AddIns\AddIns\BackendBindings\PythonBinding\Microsoft.Scripting.dll" Name="Microsoft.Scripting.dll" Id="Microsoft.Scripting.dll" KeyPath="yes" Assembly=".net" AssemblyApplication="Microsoft.Scripting.dll" AssemblyManifest="Microsoft.Scripting.dll" />
 										</Component>
-										<Component Guid="2B8CBE37-D71F-435C-9B26-70FF69451A6E" Id="MicrosoftScriptingExtensionAttributeDll" DiskId="1">
-											<File Source="..\..\AddIns\AddIns\BackendBindings\PythonBinding\Microsoft.Scripting.ExtensionAttribute.dll" Name="Microsoft.Scripting.ExtensionAttribute.dll" Id="Microsoft.Scripting.ExtensionAttribute.dll" KeyPath="yes" Assembly=".net" AssemblyApplication="Microsoft.Scripting.ExtensionAttribute.dll" />
-										</Component>
 										<Directory Id="PythonLib" Name="Lib">
 											<Component Guid="98D4136A-897A-479A-AD50-E89600C5016D" Id="PythonBindingLibRunpyPy" DiskId="1">
 												<File Source="..\..\AddIns\AddIns\BackendBindings\PythonBinding\Lib\runpy.py" Name="runpy.py" Id="runpy.py" KeyPath="yes" />
diff --git a/src/Setup/Setup.wxs b/src/Setup/Setup.wxs
index 9f4e57366e..e19164e465 100644
--- a/src/Setup/Setup.wxs
+++ b/src/Setup/Setup.wxs
@@ -410,9 +410,7 @@
 				<ComponentRef Id="IronPythonXml"/>	
 				<ComponentRef Id="MicrosoftDynamicDll"/>
 				<ComponentRef Id="MicrosoftScriptingDll"/>	
-				<ComponentRef Id="MicrosoftScriptingCoreDll"/>	
 				<ComponentRef Id="MicrosoftScriptingDebuggingDll"/>	
-				<ComponentRef Id="MicrosoftScriptingExtensionAttributeDll"/>	
 				<ComponentRef Id="PythonBuildTasksDll"/>	
 				<ComponentRef Id="PythonBindingAddin"/>	
 				<ComponentRef Id="PythonBindingDll"/>