求教 system error：53

[fox513]

#ifndef UNICODE
#define UNICODE
#endif

#include <stdio.h>
#include <windows.h>
#include <lm.h>
#pragma comment(lib , "Netapi32.lib")
int wmain(int argc, wchar_t *argv[])
{
DWORD dwLevel = 10;
LPUSER_INFO_10 pBuf = NULL;
NET_API_STATUS nStatus;

if (argc != 3)
{
fwprintf(stderr, L"Usage: %s \\\\ServerName UserName\n", argv[0]);
exit(1);
}
//
// Call the NetUserGetInfo function; specify level 10.
//
nStatus = NetUserGetInfo(argv[1],
argv[2],
dwLevel,
(LPBYTE *)&pBuf);
//
// If the call succeeds, print the user information.
//
if (nStatus == NERR_Success)
{
if (pBuf != NULL)
{
wprintf(L"\n\tAccount: %s\n", pBuf->usri10_name);
wprintf(L"\tComment: %s\n", pBuf->usri10_comment);
wprintf(L"\tUser comment: %s\n", pBuf->usri10_usr_comment);
wprintf(L"\tFull name: %s\n", pBuf->usri10_full_name);
}
}
// Otherwise, print the system error.
//
else
fprintf(stderr, "A system error has occurred: %d\n", nStatus);
//
// Free the allocated memory.
//
if (pBuf != NULL)
NetApiBufferFree(pBuf);

return 0;
}
在vs下编译生成test.exe文件 在dos提示符进入test.exe文件所在文件夹，输入test.exe null administrator 回车后报错 a system error has occurred:53
这是怎么回事呀，源文件时msdn里复制过来的

[oyljerry]

Unknown file error (GetLastError=53):

[fox513]

楼上能说具体点吗？我是初学的 不是很懂