MiniDumpWriteDump与MiniDumpNormal失败，但与MiniDumpWithFullMemory一起使用

Question

我正在从Windows XP SP3上运行的本地服务应用程序的顶级异常处理程序中调用MiniDumpWriteDump API，如下所示：

_MINIDUMP_EXCEPTION_INFORMATION ExInfo;
DWORD dwProcID = ::GetCurrentProcessId();
DWORD dwThreadID = ::GetCurrentThreadId();

ExInfo.ThreadId = dwThreadID;
ExInfo.ExceptionPointers = pExceptionInfo;   //Receive it from the exception handler
ExInfo.ClientPointers = NULL;

if(!pfnMiniDumpWriteDump(GetCurrentProcess(), dwProcID, hFile, MiniDumpNormal, &ExInfo, NULL, NULL))
{
    int nOSError = ::GetLastError();    //I receive 0x80070057
}

上面的错误代码为0x80070057，但是如果我将转储类型更改为MiniDumpWithFullMemory它就可以了。知道为什么吗？