test_cmd_line: test_python_legacy_windows_stdio() fails with STATUS_DLL_INIT_FAILED (hex: c0000142, dec: 3221225794)

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Bug report

Windows (free-threading) / Build and test (x64, switch-case): https://github.com/python/cpython/actions/runs/26421370296/job/77776609299?pr=150432

FAIL: test_python_legacy_windows_stdio (test.test_cmd_line.CmdLineTest.test_python_legacy_windows_stdio)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "D:\a\cpython\cpython\Lib\test\test_cmd_line.py", line 1047, in test_python_legacy_windows_stdio
    self.assertEqual(p.returncode, 0)
    ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
AssertionError: 3221225794 != 0

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A variant of the issue: test_msvcrt.test_getwche() fails with exit status 3221225794.

Windows (free-threading) / Build and test (x64, switch-case): https://github.com/python/cpython/actions/runs/26425887065/job/77789325591?pr=150440

ERROR: test_getwche (test.test_msvcrt.TestConsoleIO.test_getwche)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "D:\a\cpython\cpython\Lib\test\test_msvcrt.py", line 102, in test_getwche
    self.check_getwch('getwche')
    ~~~~~~~~~~~~~~~~~^^^^^^^^^^^
  File "D:\a\cpython\cpython\Lib\test\test_msvcrt.py", line 92, in check_getwch
    self.run_in_separated_process(code)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^
  File "D:\a\cpython\cpython\Lib\test\test_msvcrt.py", line 70, in run_in_separated_process
    subprocess.run(cmd, check=True, capture_output=True,
    ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                   creationflags=subprocess.CREATE_NEW_CONSOLE)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\a\cpython\cpython\Lib\subprocess.py", line 692, in run
    raise CalledProcessError(retcode, process.args,
                             output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['D:\\a\\cpython\\cpython\\PCbuild\\amd64t\\python_d.exe', '-c', '\nimport msvcrt\nfrom _testconsole import write_input\nwith open("CONIN$", "rb", buffering=0) as stdin:\n    write_input(stdin, b\'W[\')\n    assert msvcrt.getwche() == "å­—"\n']' returned non-zero exit status 3221225794.

[zooba]

Hmm... I wonder if we're copying vcruntime140*.dll around poorly in the new build arrangement?

That error code means the DLL initialization failed, which usually only happens if you're doing weird mixing of C runtimes or if you've copied/symlinked files around and tried to launch them (which I guess is what we're doing here, since we do that in a number of tests)