为什么复制到system32会自动复制到sysWOW64？

Question

我正在尝试通过调用CopyFileA将文件复制到C：\\ windows \\ system32 - 调试显示确实将字符串“C：\\ windows \\ system32 \\ filename”发送到CopyFileA，但我的文件被复制到“C：\\” windows \\ system32 \\ sysWOW64 \\ filename“而不是。 有谁知道为什么会这样？

Answer 1

在64位Windows上，Windows为32位进程执行文件系统重定向。 要禁用，请调用Wow64DisableWow64FsRedirection

为了使应用程序也能在32位Windows XP上运行，Wow64DisableWow64FsRedirection必须在运行时动态链接。 这是我使用的代码：

BOOL DisableWow64FsRedirection(PVOID* OldValue)
{
#ifdef WIN64
    UNREFERENCED_PARAMETER(OldValue);
    return TRUE;
#else
    typedef BOOL (WINAPI * LPWOW64DISABLEWOW64FSREDIRECTION)(PVOID *);

    LPWOW64DISABLEWOW64FSREDIRECTION    fnWow64DisableWow64FsRedirection;
    HMODULE                             kernelMod;
    BOOL                                success = TRUE;

    kernelMod = GetModuleHandleW(L"kernel32");
    if (kernelMod)
    {
        fnWow64DisableWow64FsRedirection = (LPWOW64DISABLEWOW64FSREDIRECTION)GetProcAddress(kernelMod, "Wow64DisableWow64FsRedirection");
        if (fnWow64DisableWow64FsRedirection)
            success = fnWow64DisableWow64FsRedirection(OldValue);
    }

    return success;
#endif
}

BOOL RevertWow64FsRedirection(PVOID OldValue)
{
#ifdef WIN64
    UNREFERENCED_PARAMETER(OldValue);
    return TRUE;
#else
    typedef BOOL (WINAPI * LPWOW64REVERTWOW64FSREDIRECTION)(PVOID);

    LPWOW64REVERTWOW64FSREDIRECTION fnWow64RevertWow64FsRedirection;
    HMODULE                         kernelMod;
    BOOL                            success = TRUE;

    kernelMod = GetModuleHandleW(L"kernel32");
    if (kernelMod)
    {
        fnWow64RevertWow64FsRedirection = (LPWOW64REVERTWOW64FSREDIRECTION)GetProcAddress(kernelMod, "Wow64RevertWow64FsRedirection");
        if (fnWow64RevertWow64FsRedirection)
            success = fnWow64RevertWow64FsRedirection(OldValue);
    }

    return success;
#endif
}

Answer 2

只需要检查操作系统然后检查它并访问文件夹system32就像：

string os = Environment.GetEnvironmentVariable("WINDIR") + "\\SysWOW64";
            if (Directory.Exists(os))
            {
                destinationDir = Path.Combine(Environment.ExpandEnvironmentVariables("%windir%"), "sysnative\\");
        }

通过此，您可以复制system32文件夹中的文件。

享受：阿里拉扎

Answer 3

这个解决方案对我来说似乎更好：归功于Bevan Collins。

BOOL changeWow64Redirection(PVOID& param, BOOL toDisable = true)
{
#ifdef WIN64
  UNREFERENCED_PARAMETER(OldValue);
  return TRUE;
#else
  typedef BOOL (WINAPI * LPWOW64CHANGEWOW64FSREDIRECTION)(PVOID *);
  LPWOW64CHANGEWOW64FSREDIRECTION     fnWow64ChangeWow64FsRedirection;
  HMODULE                             kernelMod;
  BOOL                                success = FALSE;
  kernelMod = GetModuleHandle(_T("kernel32"));
  if (kernelMod)
  {
    if (toDisable)
      fnWow64ChangeWow64FsRedirection = (LPWOW64CHANGEWOW64FSREDIRECTION)GetProcAddress(kernelMod, "Wow64DisableWow64FsRedirection");
    else
      fnWow64ChangeWow64FsRedirection = (LPWOW64CHANGEWOW64FSREDIRECTION)GetProcAddress(kernelMod, "Wow64RevertWow64FsRedirection");
    if (fnWow64ChangeWow64FsRedirection)
      success = fnWow64ChangeWow64FsRedirection(&param);
  }
  return success;
#endif //WIN64
}