diff --git a/libsrc/occ/python_occ_basic.cpp b/libsrc/occ/python_occ_basic.cpp
index 48a9b723..d84e78d1 100644
--- a/libsrc/occ/python_occ_basic.cpp
+++ b/libsrc/occ/python_occ_basic.cpp
@@ -1,23 +1,6 @@
 #ifdef NG_PYTHON
 #ifdef OCCGEOMETRY
 
-
-// for testing: copied from mystdlib.h
-#ifdef _MSC_VER
-# define WIN32_LEAN_AND_MEAN
-# ifndef NO_PARALLEL_THREADS
-#  ifdef MSVC_EXPRESS
-#  else
-#   include <afxwin.h>
-#   include <afxmt.h>
-#  endif // MSVC_EXPRESS
-# endif
-# include <windows.h>
-# undef WIN32_LEAN_AND_MEAN
-# include <winnt.h>
-#else // Not using MC VC++
-#endif
-
 #include <general/ngpython.hpp>
 #include <core/python_ngcore.hpp>
 #include <meshing/python_mesh.hpp>
diff --git a/libsrc/occ/python_occ_shapes.cpp b/libsrc/occ/python_occ_shapes.cpp
index e1266119..9c50261c 100644
--- a/libsrc/occ/python_occ_shapes.cpp
+++ b/libsrc/occ/python_occ_shapes.cpp
@@ -1,23 +1,6 @@
 #ifdef NG_PYTHON
 #ifdef OCCGEOMETRY
 
-// for testing: copied from mystdlib.h
-#ifdef _MSC_VER
-# define WIN32_LEAN_AND_MEAN
-# ifndef NO_PARALLEL_THREADS
-#  ifdef MSVC_EXPRESS
-#  else
-#   include <afxwin.h>
-#   include <afxmt.h>
-#  endif // MSVC_EXPRESS
-# endif
-# include <windows.h>
-# undef WIN32_LEAN_AND_MEAN
-# include <winnt.h>
-#else // Not using MC VC++
-#endif
-
-
 #include <regex>
 
 #include <general/ngpython.hpp>