C / C++ / MFC

//Create a directory if it doesn't exist
if ( !PathFileExists("C:\\TestDir") )
{
CreateDirectory("C:\\TestDir", NULL);
}

//Create a batch file in the directory
CFile cfBatchFile( "C:\\TestDir\\TestBatch.bat", CFile::modeCreate| CFile::modeRead | CFile::modeWrite );

//Write 'C:\\windows\\system32\cmd.exe" ipconfig>C:\\TestDir\\Test.txt in the batch file
cfBatchFile.Write( "\"C:\\windows\\system32\cmd.exe\" ipconfig>C:\\TestDir\\Test.txt", MAX_PATH );

cfBatchFile.Close();

//ShellExecute runs "C:\\TestDir\\TestBatch.bat" and generates output for 'ipconfig' and redirects it to text file "C:\\TestDir\\Test.txt"
if ( ShellExecute(NULL, "open", "C:\\TestDir\\TestBatch.bat", NULL, NULL, SW_HIDE) > (HINSTANCE)32)
{
    CFile* pcfTxt = NULL;

    //Trying to open 'C:\\TestDir\\Test.txt' for reading BUT CRASH HAPPENS HERE (unhandled Exception)
    pcfTxt = new CFile(_T("C:\\TestDir\\Test.txt"), CFile::modeRead | CFile::shareDenyNone);

    INT nLogTxtLen = pcfTxt->GetLength();
}