请教高手！为何调用NtCreatePagingFile总报STATUS_OBJECT_NAME_INVALID错误

请教高手！我写了一个exe程序，已经确认获取了SE_CREATE_PAGEFILE_NAME权限，但是调用NtCreatePagingFile总是返回STATUS_OBJECT_NAME_INVALID错误，代码如下：
WCHAR text1[120];
UNICODE_STRING pagefile;
ULARGE_INTEGER minsize;
ULARGE_INTEGER maxsize;
swprintf( text1, L"e:\\pagefile.sys" );
memset( &pagefile, '', sizeof(UNICODE_STRING));
pagefile.Length = wcslen(text1)*2;
pagefile.MaximumLength = 120*2;
pagefile.Buffer = text1;
memset(&minsize, '', sizeof(ULARGE_INTEGER));
minsize.LowPart = 1024*1024*30;
memset(&maxsize, '', sizeof(ULARGE_INTEGER));
maxsize.LowPart = 1024*1024*300;
NtCreatePagingFile(&pagefile, &minsize, &maxsize, 0);


[编辑 -  11/13/04 by  felics]

[编辑 -  11/13/04 by  felics]