帮改一个C++WMICOM程序

连接远程电脑并执行系统命令systeminfo>>test.txt(这样获取信息比较方便)
以下有两个参考程序（网上抄来的）和一个地址
http://www.codeguru.com/Cpp/W-P/system/misc/article.php/c5675
注意： 使用argv 远程传递IP username password
#define   POLARITY  
  #define   _WIN32_DCOM  
   
  #include   <afx.h>  
   
  #include   <iostream>  
  using   namespace   std;  
  #include   <iomanip>  
  #include   <windows.h>  
  #include   <chstring.h>  
  #include   <chstrarr.h>  
  #include   <assert.h>  
  #include   <comdef.h>  
  #include   <wbemcli.h>  
   
  #include   <winbase.h>  
   
  int   main(int   argc,   char   **argv)  
  {  
  HRESULT   hres;  
  hres   =     CoInitializeEx(0,   COINIT_MULTITHREADED);   //   Initialize   COM.  
  if   (FAILED(hres))  
  {  
  cout   <<   "Failed   to   initialize   COM   library.   Error   code   =   0x"    
  <<   hex   <<   hres   <<   endl;  
  return   1;                                     //   Program   has   failed.  
  }  
   
  hres   =     CoInitializeSecurity(NULL,   -1,   NULL,   NULL,  
                  RPC_C_AUTHN_LEVEL_CONNECT,    
                  RPC_C_IMP_LEVEL_IDENTIFY,    
                  NULL,   EOAC_NONE,   0  
                  );  
   
  if   (FAILED(hres))  
  {  
  cout   <<   "Failed   to   initialize   security.   Error   code   =   0x"    
  <<   hex   <<   hres   <<   endl;  
  CoUninitialize();  
  return   1;                                     //   Program   has   failed.  
  }  
          IWbemLocator   *pLoc   =   0;  
   
          hres   =   CoCreateInstance(CLSID_WbemLocator,   0,    
                  CLSCTX_INPROC_SERVER,   IID_IWbemLocator,   (LPVOID   *)   &pLoc);  
   
          if   (FAILED(hres))  
          {  
                  cout   <<   "Failed   to   create   IWbemLocator   object.   Err   code   =   0x"  
  <<   hex   <<   hres   <<   endl;  
                  CoUninitialize();  
                  return   1;           //   Program   has   failed.  
          }  
   
          IWbemServices   *pSvc   =   0;  
   
          //   Connect   to   the   root\default   namespace   with   the   current   user.  
          hres   =   pLoc->ConnectServer(  
  _bstr_t(L"\\\\192.168.0.21\\ROOT\\cimv2"),    
  _bstr_t(L"Administrator"),  
  _bstr_t(L"1234"),  
  0,                                                                      
  NULL,  
  0,                                    &nbs