diff --git a/PCbuild/pythoncore.vcxproj b/PCbuild/pythoncore.vcxproj
index 95552cade52b75..9ebf58ae8a9bc4 100644
--- a/PCbuild/pythoncore.vcxproj
+++ b/PCbuild/pythoncore.vcxproj
@@ -169,9 +169,7 @@
     <ClInclude Include="..\Include\cpython\object.h" />
     <ClInclude Include="..\Include\cpython\objimpl.h" />
     <ClInclude Include="..\Include\cpython\odictobject.h" />
-    <ClInclude Include="..\Include\cpython\parser_interface.h" />
     <ClInclude Include="..\Include\cpython\picklebufobject.h" />
-    <ClInclude Include="..\Include\cpython\pyarena.h" />
     <ClInclude Include="..\Include\cpython\pyatomic.h" />
     <ClInclude Include="..\Include\cpython\pyatomic_msc.h" />
     <ClInclude Include="..\Include\cpython\pyctype.h" />
@@ -220,7 +218,6 @@
     <ClInclude Include="..\Include\internal\pycore_cell.h" />
     <ClInclude Include="..\Include\internal\pycore_ceval.h" />
     <ClInclude Include="..\Include\internal\pycore_ceval_state.h" />
-    <ClInclude Include="..\Include\internal\pycore_cfg.h" />
     <ClInclude Include="..\Include\internal\pycore_code.h" />
     <ClInclude Include="..\Include\internal\pycore_codecs.h" />
     <ClInclude Include="..\Include\internal\pycore_compile.h" />
@@ -366,14 +363,12 @@
     <ClInclude Include="..\Include\sliceobject.h" />
     <ClInclude Include="..\Include\structmember.h" />
     <ClInclude Include="..\Include\structseq.h" />
-    <ClInclude Include="..\Include\symtable.h" />
     <ClInclude Include="..\Include\sysmodule.h" />
     <ClInclude Include="..\Include\traceback.h" />
     <ClInclude Include="..\Include\tupleobject.h" />
     <ClInclude Include="..\Include\unicodeobject.h" />
     <ClInclude Include="..\Include\weakrefobject.h" />
     <ClInclude Include="..\Modules\_math.h" />
-    <ClInclude Include="..\Modules\hashtable.h" />
     <ClInclude Include="..\Modules\rotatingtree.h" />
     <ClInclude Include="..\Modules\_io\_iomodule.h" />
     <ClInclude Include="..\Modules\cjkcodecs\alg_jisx0201.h" />
@@ -415,7 +410,7 @@
     <ClInclude Include="$(zlibDir)\inftrees.h" />
     <ClInclude Include="$(zlibDir)\trees.h" />
     <ClInclude Include="$(zlibDir)\zconf.h" />
-    <ClInclude Include="$(zlibDir)\zconf.in.h" />
+    <ClInclude Include="$(zlibDir)\zconf.h.in" />
     <ClInclude Include="$(zlibDir)\zlib.h" />
     <ClInclude Include="$(zlibDir)\zutil.h" />
   </ItemGroup>
diff --git a/PCbuild/pythoncore.vcxproj.filters b/PCbuild/pythoncore.vcxproj.filters
index 1708cf6e0b3a52..6c76a6ab592a84 100644
--- a/PCbuild/pythoncore.vcxproj.filters
+++ b/PCbuild/pythoncore.vcxproj.filters
@@ -231,9 +231,6 @@
     <ClInclude Include="..\Include\structseq.h">
       <Filter>Include</Filter>
     </ClInclude>
-    <ClInclude Include="..\Include\symtable.h">
-      <Filter>Include</Filter>
-    </ClInclude>
     <ClInclude Include="..\Include\sysmodule.h">
       <Filter>Include</Filter>
     </ClInclude>
@@ -342,9 +339,6 @@
     <ClInclude Include="..\Include\pyhash.h">
       <Filter>Include</Filter>
     </ClInclude>
-    <ClInclude Include="..\Modules\hashtable.h">
-      <Filter>Modules</Filter>
-    </ClInclude>
     <ClInclude Include="..\Parser\pegen.h">
       <Filter>Parser</Filter>
     </ClInclude>
@@ -447,15 +441,9 @@
     <ClInclude Include="..\Include\cpython\object.h">
       <Filter>Include\cpython</Filter>
     </ClInclude>
-    <ClInclude Include="..\Include\cpython\parser_interface.h">
-      <Filter>Include</Filter>
-    </ClInclude>
     <ClInclude Include="..\Include\cpython\picklebufobject.h">
       <Filter>Include</Filter>
     </ClInclude>
-    <ClInclude Include="..\Include\cpython\pyarena.h">
-      <Filter>Include</Filter>
-    </ClInclude>
     <ClInclude Include="..\Include\cpython\pyatomic.h">
       <Filter>Include</Filter>
     </ClInclude>
@@ -903,7 +891,7 @@
     <ClInclude Include="$(zlibDir)\zconf.h">
       <Filter>Modules\zlib</Filter>
     </ClInclude>
-    <ClInclude Include="$(zlibDir)\zconf.in.h">
+    <ClInclude Include="$(zlibDir)\zconf.h.in">
       <Filter>Modules\zlib</Filter>
     </ClInclude>
     <ClInclude Include="$(zlibDir)\zlib.h">