Запуск exe-файла с перенаправлением потоков

#include <Windows.h>
#include <iostream>
using namespace std;
 
int main(int argc, char **argv)
{
    STARTUPINFO si;
    PROCESS_INFORMATION pi;
    GetStartupInfo(&si);
    if (!CreateProcess("prog.exe", " <input.txt >output.txt", 0, 0, 0, 0, 0, 0, &si, &pi))
    {
        cout << "Error" << endl;
    }
}

if (!CreateProcess("prog.exe <input.txt >output.txt", 0, 0, 0, 0, 0, 0, 0, &si, &pi))
{
    cout << "Error" << endl;
}

#include <Windows.h>
#include <iostream>
using namespace std;
 
int main(int argc, char **argv)
{
    TCHAR szCmdline[] = TEXT("prog.exe");
    TCHAR inFile[] = TEXT("input.txt");
    TCHAR outFile[] = TEXT("output.txt");
 
    SECURITY_ATTRIBUTES saAttr;
    saAttr.nLength = sizeof(SECURITY_ATTRIBUTES);
    saAttr.bInheritHandle = TRUE;
    saAttr.lpSecurityDescriptor = NULL;
 
    PROCESS_INFORMATION pi;
    STARTUPINFO si;
 
    ZeroMemory(&pi, sizeof(PROCESS_INFORMATION));
    ZeroMemory(&si, sizeof(STARTUPINFO));
    si.cb = sizeof(STARTUPINFO);
 
    si.hStdOutput = CreateFile(outFile, GENERIC_WRITE, FILE_SHARE_WRITE, &saAttr, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
    if(si.hStdOutput == INVALID_HANDLE_VALUE)
    {
        cout << "Error outfile" << endl;
    }
    si.hStdInput = CreateFile(inFile, GENERIC_READ, FILE_SHARE_READ, &saAttr, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
    if(si.hStdInput == INVALID_HANDLE_VALUE)
    {
        cout << "Error infile" << endl;
    }
 
    si.dwFlags |= STARTF_USESTDHANDLES;
    if (!CreateProcess(NULL, szCmdline, NULL, NULL, TRUE, 0, NULL, NULL, &si, &pi))
    {
        DWORD dw = GetLastError();
        cout << "Error : " << dw << endl;
    }
    return 0;
}