IopApplyMutableTagToRegistryKey

NTSTATUS __stdcall IopApplyMutableTagToRegistryKey(HANDLE KeyHandle){
  NTSTATUS result; 
  int KeyInformation; 
  UINT64 ResultLength; 
  KeyInformation = 0;
  LODWORD(ResultLength) = 0;
  if( !KeyHandle )
    return -1073741811;
  result = ZwQueryKey(KeyHandle, KeyHandleTagsInformation, &KeyInformation, 4ui64, &ResultLength);
  if( result >= 0 )
  {
    if( (KeyInformation & 0x1000) != 0 )
    {
      return 0;
    }
    else
    {
      KeyInformation |= 0x1000u;
      return ZwSetInformationKey(KeyHandle, KeySetHandleTagsInformation, &KeyInformation, 4ui64);
    }
  }
  return result;
}

Referenced by: