diff --git a/Include/internal/pycore_fileutils.h b/Include/internal/pycore_fileutils.h
@@ -251,6 +251,14 @@ extern int _Py_add_relfile(wchar_t *dirname,
extern size_t _Py_find_basename(const wchar_t *filename);
PyAPI_FUNC(wchar_t *) _Py_normpath(wchar_t *path, Py_ssize_t size);


// Macros to protect CRT calls against instant termination when passed an
// invalid parameter (bpo-23524). IPH stands for Invalid Parameter Handler.

diff --git a/Lib/test/test_os.py b/Lib/test/test_os.py
@@ -3064,11 +3064,13 @@ def test_device_encoding(self):
class PidTests(unittest.TestCase):
    @unittest.skipUnless(hasattr(os, 'getppid'), "test needs os.getppid")
    def test_getppid(self):
-        p = subprocess.Popen([sys.executable, '-c',
                              'import os; print(os.getppid())'],
-                             stdout=subprocess.PIPE)
-        stdout, _ = p.communicate()
        # We are the parent of our subprocess
        self.assertEqual(int(stdout), os.getpid())

    def check_waitpid(self, code, exitcode, callback=None):

diff --git a/Misc/NEWS.d/next/Core and Builtins/2023-02-26-11-43-56.gh-issue-102255.cRnI5x.rst b/Misc/NEWS.d/next/Core and Builtins/2023-02-26-11-43-56.gh-issue-102255.cRnI5x.rst
@@ -0,0 +1 @@
diff --git a/Modules/_io/_iomodule.c b/Modules/_io/_iomodule.c
@@ -317,7 +317,7 @@ _io_open_impl(PyObject *module, PyObject *file, const char *mode,
    _PyIO_State *state = get_io_state(module);
    {
        PyObject *RawIO_class = (PyObject *)state->PyFileIO_Type;
-#ifdef MS_WINDOWS
        const PyConfig *config = _Py_GetConfig();
        if (!config->legacy_windows_stdio && _PyIO_get_console_type(path_or_fd) != '\0') {
            RawIO_class = (PyObject *)&PyWindowsConsoleIO_Type;
@@ -660,7 +660,7 @@ static PyTypeObject* static_types[] = {

    // PyRawIOBase_Type(PyIOBase_Type) subclasses
    &_PyBytesIOBuffer_Type,
-#ifdef MS_WINDOWS
    &PyWindowsConsoleIO_Type,
#endif
};
@@ -718,7 +718,7 @@ PyInit__io(void)
    }

    // Set type base classes
-#ifdef MS_WINDOWS
    PyWindowsConsoleIO_Type.tp_base = &PyRawIOBase_Type;
#endif


diff --git a/Modules/_io/clinic/winconsoleio.c.h b/Modules/_io/clinic/winconsoleio.c.h
diff --git a/Modules/_io/winconsoleio.c b/Modules/_io/winconsoleio.c
@@ -11,7 +11,7 @@
#include "pycore_fileutils.h"     // _Py_BEGIN_SUPPRESS_IPH
#include "pycore_object.h"        // _PyObject_GC_UNTRACK()

-#ifdef MS_WINDOWS

#include "structmember.h"         // PyMemberDef
#ifdef HAVE_SYS_TYPES_H
@@ -22,7 +22,9 @@
#endif
#include <stddef.h> /* For offsetof */

#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <fcntl.h>

@@ -1177,4 +1179,4 @@ PyTypeObject PyWindowsConsoleIO_Type = {
    0,                                          /* tp_finalize */
};

-#endif /* MS_WINDOWS */
diff --git a/Modules/_localemodule.c b/Modules/_localemodule.c
@@ -35,7 +35,9 @@ This software comes with no warranty. Use at your own risk.
#endif

#if defined(MS_WINDOWS)
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#endif

@@ -457,12 +459,12 @@ _locale__getdefaultlocale_impl(PyObject *module)

    PyOS_snprintf(encoding, sizeof(encoding), "cp%u", GetACP());

-    if (GetLocaleInfo(LOCALE_USER_DEFAULT,
                      LOCALE_SISO639LANGNAME,
                      locale, sizeof(locale))) {
        Py_ssize_t i = strlen(locale);
        locale[i++] = '_';
-        if (GetLocaleInfo(LOCALE_USER_DEFAULT,
                          LOCALE_SISO3166CTRYNAME,
                          locale+i, (int)(sizeof(locale)-i)))
            return Py_BuildValue("ss", locale, encoding);
@@ -474,7 +476,7 @@ _locale__getdefaultlocale_impl(PyObject *module)

    locale[0] = '0';
    locale[1] = 'x';
-    if (GetLocaleInfo(LOCALE_USER_DEFAULT, LOCALE_IDEFAULTLANGUAGE,
                      locale+2, sizeof(locale)-2)) {
        return Py_BuildValue("ss", locale, encoding);
    }

@@ -12,7 +12,9 @@
 */

#ifdef MS_WINDOWS
-#  define WIN32_LEAN_AND_MEAN
#  include <windows.h>
#  include <winsock2.h>
#  include <process.h>               /* getpid() */

diff --git a/Modules/_pickle.c b/Modules/_pickle.c
@@ -42,6 +42,12 @@ enum {
#define FLOAT FLOAT_
#define INT INT_
#define LONG LONG_
#endif

/* Pickle opcodes. These must be kept updated with pickle.py.

@@ -77,6 +77,10 @@
#  include <process.h>            // getpid()
#endif

/* Period parameters -- These are all magic.  Don't change. */
#define N 624
#define M 397
@@ -259,7 +263,7 @@ random_seed_time_pid(RandomObject *self)
    key[0] = (uint32_t)(now & 0xffffffffU);
    key[1] = (uint32_t)(now >> 32);

-#ifdef MS_WINDOWS_NON_DESKTOP
    key[2] = (uint32_t)GetCurrentProcessId();
#elif defined(HAVE_GETPID)
    key[2] = (uint32_t)getpid();

@@ -28,6 +28,10 @@
/* Include symbols from _socket module */
#include "socketmodule.h"

#include "_ssl.h"

/* Redefined below for Windows debug builds after important #includes */